diff --git a/sql/updates/world/4.3.4/2020_08_31_00_world.sql b/sql/updates/world/4.3.4/2020_08_31_00_world.sql
new file mode 100644
index 00000000000..f12e32e336d
--- /dev/null
+++ b/sql/updates/world/4.3.4/2020_08_31_00_world.sql
@@ -0,0 +1,271 @@
+SET @SPAWNGROUP := 439;
+DELETE FROM `spawn_group_template` WHERE `groupId` BETWEEN @SPAWNGROUP+0 AND @SPAWNGROUP+3;
+INSERT INTO `spawn_group_template` (`groupId`, `groupName`, `groupFlags`) VALUES
+(@SPAWNGROUP+0, 'Bastion of Twilight - Halfus Trash', 4),
+(@SPAWNGROUP+1, 'Bastion of Twilight - Theralion and Valiona Trash', 4),
+(@SPAWNGROUP+2, 'Bastion of Twilight - Ascendant Council Trash', 4),
+(@SPAWNGROUP+3, 'Bastion of Twilight - Cho''Gall Trash', 4);
+
+DELETE FROM `spawn_group` WHERE `groupId`= @SPAWNGROUP+0;
+INSERT INTO `spawn_group` (`groupId`, `spawnType`, `spawnId`) VALUES
+(@SPAWNGROUP+0, 0, 339664),
+(@SPAWNGROUP+0, 0, 339667),
+(@SPAWNGROUP+0, 0, 339668),
+(@SPAWNGROUP+0, 0, 339666),
+(@SPAWNGROUP+0, 0, 339672),
+(@SPAWNGROUP+0, 0, 339673),
+(@SPAWNGROUP+0, 0, 339733),
+(@SPAWNGROUP+0, 0, 339732),
+(@SPAWNGROUP+0, 0, 339670),
+(@SPAWNGROUP+0, 0, 339665),
+(@SPAWNGROUP+0, 0, 339662),
+(@SPAWNGROUP+0, 0, 339669),
+(@SPAWNGROUP+0, 0, 339663),
+(@SPAWNGROUP+0, 0, 339661),
+(@SPAWNGROUP+0, 0, 253820),
+(@SPAWNGROUP+0, 0, 253821),
+(@SPAWNGROUP+0, 0, 253815),
+(@SPAWNGROUP+0, 0, 253808),
+(@SPAWNGROUP+0, 0, 253803),
+(@SPAWNGROUP+0, 0, 253801),
+(@SPAWNGROUP+0, 0, 253786),
+(@SPAWNGROUP+0, 0, 253793),
+(@SPAWNGROUP+0, 0, 253804),
+(@SPAWNGROUP+0, 0, 253818),
+(@SPAWNGROUP+0, 0, 253822),
+(@SPAWNGROUP+0, 0, 253816),
+(@SPAWNGROUP+0, 0, 253848),
+(@SPAWNGROUP+0, 0, 253828),
+(@SPAWNGROUP+0, 0, 253839),
+(@SPAWNGROUP+0, 0, 253845),
+(@SPAWNGROUP+0, 0, 253831),
+(@SPAWNGROUP+0, 0, 253841),
+(@SPAWNGROUP+0, 0, 253811),
+(@SPAWNGROUP+0, 0, 253809),
+(@SPAWNGROUP+0, 0, 253819),
+(@SPAWNGROUP+0, 0, 253813),
+(@SPAWNGROUP+0, 0, 253823),
+(@SPAWNGROUP+0, 0, 253833),
+(@SPAWNGROUP+0, 0, 253832),
+(@SPAWNGROUP+0, 0, 253826),
+(@SPAWNGROUP+0, 0, 253829),
+(@SPAWNGROUP+0, 0, 253825),
+(@SPAWNGROUP+0, 0, 253805),
+(@SPAWNGROUP+0, 0, 253817),
+(@SPAWNGROUP+0, 0, 253806),
+(@SPAWNGROUP+0, 0, 253812),
+(@SPAWNGROUP+0, 0, 253810),
+(@SPAWNGROUP+0, 0, 253814),
+(@SPAWNGROUP+0, 0, 253807),
+(@SPAWNGROUP+0, 0, 253802),
+(@SPAWNGROUP+0, 0, 253796),
+(@SPAWNGROUP+0, 0, 253785),
+(@SPAWNGROUP+0, 0, 253781),
+(@SPAWNGROUP+0, 0, 253824),
+(@SPAWNGROUP+0, 0, 339671),
+(@SPAWNGROUP+0, 0, 339674),
+(@SPAWNGROUP+0, 0, 253799),
+(@SPAWNGROUP+0, 0, 253787),
+(@SPAWNGROUP+0, 0, 253789),
+(@SPAWNGROUP+0, 0, 253800),
+(@SPAWNGROUP+0, 0, 253779),
+(@SPAWNGROUP+0, 0, 253783),
+(@SPAWNGROUP+0, 0, 253780),
+(@SPAWNGROUP+0, 0, 253778),
+(@SPAWNGROUP+0, 0, 253844),
+(@SPAWNGROUP+0, 0, 253843),
+(@SPAWNGROUP+0, 0, 253836),
+(@SPAWNGROUP+0, 0, 253835),
+(@SPAWNGROUP+0, 0, 253847),
+(@SPAWNGROUP+0, 0, 253834),
+(@SPAWNGROUP+0, 0, 253849),
+(@SPAWNGROUP+0, 0, 253837),
+(@SPAWNGROUP+0, 0, 253838),
+(@SPAWNGROUP+0, 0, 253840),
+(@SPAWNGROUP+0, 0, 253784),
+(@SPAWNGROUP+0, 0, 253791),
+(@SPAWNGROUP+0, 0, 253794),
+(@SPAWNGROUP+0, 0, 253782),
+(@SPAWNGROUP+0, 0, 253797),
+(@SPAWNGROUP+0, 0, 253792),
+(@SPAWNGROUP+0, 0, 253790),
+(@SPAWNGROUP+0, 0, 253795),
+(@SPAWNGROUP+0, 0, 253798),
+(@SPAWNGROUP+0, 0, 253788),
+(@SPAWNGROUP+0, 0, 253830),
+(@SPAWNGROUP+0, 0, 253827),
+(@SPAWNGROUP+0, 0, 253846),
+(@SPAWNGROUP+0, 0, 253842);
+
+DELETE FROM `spawn_group` WHERE `groupId`= @SPAWNGROUP+1;
+INSERT INTO `spawn_group` (`groupId`, `spawnType`, `spawnId`) VALUES
+(@SPAWNGROUP+1, 0, 339676),
+(@SPAWNGROUP+1, 0, 339675),
+(@SPAWNGROUP+1, 0, 339677),
+(@SPAWNGROUP+1, 0, 339692),
+(@SPAWNGROUP+1, 0, 339679),
+(@SPAWNGROUP+1, 0, 339678),
+(@SPAWNGROUP+1, 0, 339694),
+(@SPAWNGROUP+1, 0, 339680),
+(@SPAWNGROUP+1, 0, 339689),
+(@SPAWNGROUP+1, 0, 339701),
+(@SPAWNGROUP+1, 0, 339699),
+(@SPAWNGROUP+1, 0, 339697),
+(@SPAWNGROUP+1, 0, 339698),
+(@SPAWNGROUP+1, 0, 339710),
+(@SPAWNGROUP+1, 0, 339708),
+(@SPAWNGROUP+1, 0, 339688),
+(@SPAWNGROUP+1, 0, 339686),
+(@SPAWNGROUP+1, 0, 339687),
+(@SPAWNGROUP+1, 0, 339712),
+(@SPAWNGROUP+1, 0, 339709),
+(@SPAWNGROUP+1, 0, 339711),
+(@SPAWNGROUP+1, 0, 339707),
+(@SPAWNGROUP+1, 0, 339706),
+(@SPAWNGROUP+1, 0, 339705),
+(@SPAWNGROUP+1, 0, 339721),
+(@SPAWNGROUP+1, 0, 339683),
+(@SPAWNGROUP+1, 0, 339684),
+(@SPAWNGROUP+1, 0, 339720),
+(@SPAWNGROUP+1, 0, 339702),
+(@SPAWNGROUP+1, 0, 339682),
+(@SPAWNGROUP+1, 0, 339695),
+(@SPAWNGROUP+1, 0, 339691),
+(@SPAWNGROUP+1, 0, 339696),
+(@SPAWNGROUP+1, 0, 339700),
+(@SPAWNGROUP+1, 0, 339693),
+(@SPAWNGROUP+1, 0, 339690),
+(@SPAWNGROUP+1, 0, 339681),
+(@SPAWNGROUP+1, 0, 339713),
+(@SPAWNGROUP+1, 0, 339716),
+(@SPAWNGROUP+1, 0, 339717),
+(@SPAWNGROUP+1, 0, 339704),
+(@SPAWNGROUP+1, 0, 339703),
+(@SPAWNGROUP+1, 0, 339715),
+(@SPAWNGROUP+1, 0, 339714),
+(@SPAWNGROUP+1, 0, 339685),
+(@SPAWNGROUP+1, 0, 253893),
+(@SPAWNGROUP+1, 0, 253898),
+(@SPAWNGROUP+1, 0, 253896),
+(@SPAWNGROUP+1, 0, 253892),
+(@SPAWNGROUP+1, 0, 253913),
+(@SPAWNGROUP+1, 0, 253920),
+(@SPAWNGROUP+1, 0, 253912),
+(@SPAWNGROUP+1, 0, 253917),
+(@SPAWNGROUP+1, 0, 253914),
+(@SPAWNGROUP+1, 0, 253900),
+(@SPAWNGROUP+1, 0, 253909),
+(@SPAWNGROUP+1, 0, 253902),
+(@SPAWNGROUP+1, 0, 253908),
+(@SPAWNGROUP+1, 0, 253906),
+(@SPAWNGROUP+1, 0, 253911),
+(@SPAWNGROUP+1, 0, 253901),
+(@SPAWNGROUP+1, 0, 253922),
+(@SPAWNGROUP+1, 0, 253903),
+(@SPAWNGROUP+1, 0, 253923),
+(@SPAWNGROUP+1, 0, 253924),
+(@SPAWNGROUP+1, 0, 253907),
+(@SPAWNGROUP+1, 0, 253905),
+(@SPAWNGROUP+1, 0, 253984),
+(@SPAWNGROUP+1, 0, 253983),
+(@SPAWNGROUP+1, 0, 253988),
+(@SPAWNGROUP+1, 0, 253991),
+(@SPAWNGROUP+1, 0, 253943),
+(@SPAWNGROUP+1, 0, 253942),
+(@SPAWNGROUP+1, 0, 253921),
+(@SPAWNGROUP+1, 0, 253918),
+(@SPAWNGROUP+1, 0, 253945),
+(@SPAWNGROUP+1, 0, 253949),
+(@SPAWNGROUP+1, 0, 253937),
+(@SPAWNGROUP+1, 0, 253927),
+(@SPAWNGROUP+1, 0, 253919),
+(@SPAWNGROUP+1, 0, 253915),
+(@SPAWNGROUP+1, 0, 253916),
+(@SPAWNGROUP+1, 0, 253946),
+(@SPAWNGROUP+1, 0, 253944),
+(@SPAWNGROUP+1, 0, 254037),
+(@SPAWNGROUP+1, 0, 253997),
+(@SPAWNGROUP+1, 0, 253932),
+(@SPAWNGROUP+1, 0, 253986),
+(@SPAWNGROUP+1, 0, 253925),
+(@SPAWNGROUP+1, 0, 253936),
+(@SPAWNGROUP+1, 0, 253948),
+(@SPAWNGROUP+1, 0, 253935),
+(@SPAWNGROUP+1, 0, 253928),
+(@SPAWNGROUP+1, 0, 253938),
+(@SPAWNGROUP+1, 0, 253993),
+(@SPAWNGROUP+1, 0, 253934),
+(@SPAWNGROUP+1, 0, 253989),
+(@SPAWNGROUP+1, 0, 253990),
+(@SPAWNGROUP+1, 0, 253994),
+(@SPAWNGROUP+1, 0, 253995),
+(@SPAWNGROUP+1, 0, 253982),
+(@SPAWNGROUP+1, 0, 253926),
+(@SPAWNGROUP+1, 0, 253992),
+(@SPAWNGROUP+1, 0, 253985),
+(@SPAWNGROUP+1, 0, 253987),
+(@SPAWNGROUP+1, 0, 253947),
+(@SPAWNGROUP+1, 0, 253941),
+(@SPAWNGROUP+1, 0, 253940),
+(@SPAWNGROUP+1, 0, 253929),
+(@SPAWNGROUP+1, 0, 253930),
+(@SPAWNGROUP+1, 0, 253933),
+(@SPAWNGROUP+1, 0, 253939),
+(@SPAWNGROUP+1, 0, 253931),
+(@SPAWNGROUP+1, 0, 253996),
+(@SPAWNGROUP+1, 0, 253952);
+
+DELETE FROM `spawn_group` WHERE `groupId`= @SPAWNGROUP+2;
+INSERT INTO `spawn_group` (`groupId`, `spawnType`, `spawnId`) VALUES
+(@SPAWNGROUP+2, 0, 254060),
+(@SPAWNGROUP+2, 0, 254061),
+(@SPAWNGROUP+2, 0, 254072),
+(@SPAWNGROUP+2, 0, 254074),
+(@SPAWNGROUP+2, 0, 254120),
+(@SPAWNGROUP+2, 0, 254121),
+(@SPAWNGROUP+2, 0, 254071),
+(@SPAWNGROUP+2, 0, 254097),
+(@SPAWNGROUP+2, 0, 254103),
+(@SPAWNGROUP+2, 0, 254089);
+
+DELETE FROM `spawn_group` WHERE `groupId`= @SPAWNGROUP+3;
+INSERT INTO `spawn_group` (`groupId`, `spawnType`, `spawnId`) VALUES
+(@SPAWNGROUP+3, 0, 254247),
+(@SPAWNGROUP+3, 0, 254171),
+(@SPAWNGROUP+3, 0, 254249),
+(@SPAWNGROUP+3, 0, 254253),
+(@SPAWNGROUP+3, 0, 254250),
+(@SPAWNGROUP+3, 0, 254258),
+(@SPAWNGROUP+3, 0, 254255),
+(@SPAWNGROUP+3, 0, 254251),
+(@SPAWNGROUP+3, 0, 254254),
+(@SPAWNGROUP+3, 0, 254256),
+(@SPAWNGROUP+3, 0, 254252),
+(@SPAWNGROUP+3, 0, 254164),
+(@SPAWNGROUP+3, 0, 254167),
+(@SPAWNGROUP+3, 0, 254170),
+(@SPAWNGROUP+3, 0, 254165),
+(@SPAWNGROUP+3, 0, 254163),
+(@SPAWNGROUP+3, 0, 254166),
+(@SPAWNGROUP+3, 0, 254159),
+(@SPAWNGROUP+3, 0, 254160),
+(@SPAWNGROUP+3, 0, 254161),
+(@SPAWNGROUP+3, 0, 339726),
+(@SPAWNGROUP+3, 0, 339731),
+(@SPAWNGROUP+3, 0, 339728),
+(@SPAWNGROUP+3, 0, 339727),
+(@SPAWNGROUP+3, 0, 339730),
+(@SPAWNGROUP+3, 0, 339729),
+(@SPAWNGROUP+3, 0, 339723),
+(@SPAWNGROUP+3, 0, 339718),
+(@SPAWNGROUP+3, 0, 339719),
+(@SPAWNGROUP+3, 0, 339722),
+(@SPAWNGROUP+3, 0, 339724),
+(@SPAWNGROUP+3, 0, 339725);
+
+DELETE FROM `instance_spawn_groups` WHERE `instanceMapId`= 671;
+INSERT INTO `instance_spawn_groups` (`instanceMapId`, `bossStateId`, `bossStates`, `spawnGroupId`, `flags`) VALUES
+(671, 0, 17, @SPAWNGROUP+0, 1), -- Enable group when Halfus Wyrmbreaker is not DONE
+(671, 1, 17, @SPAWNGROUP+1, 1), -- Enable group when Theralion and Valiona is not DONE
+(671, 2, 17, @SPAWNGROUP+2, 1), -- Enable group when Ascendant Council is not DONE
+(671, 3, 17, @SPAWNGROUP+3, 1); -- Enable group when Cho'Gall is not DONE