This datamine consists of a Fire element theme and a water element reforged dragonforged theme. There is a random Shadowforged with its own crafting material and also 2 new chests.
The bosses are likely to consist of the elements but may not be only Fire, Spirit and Fire respectively. The eternal shadow forges are Igneous Blazemail, Sundae Best, [some armour I don't know the name of ] and Sinister Platemail. The reforged Dragonforges are Asgardian Wargear, Harmonic Battlegear, Jurassic Scalemail and Karesh Battlegear.
As always the elements predicted are not 100% reliable so please keep the flames low.