okay, I have a few speculations regarding the SoO bosses..
1)looking at the new client strings and spells, it looks like Iron Juggernaut is going to be like Flame Leviathan.. MAYBE we fight him with siege weapons in the defensive phase and then fight him directly in p2..
2) Now i'm not saying this because Galakras is a protodrake, but judging from the audio files AND the client strings AND achievements, Galakras looks like Razorscale -.-
thats 2 bosses ripped off (probably) from Ulduar..
Spoils of Pandaria? THATS OBVIOUSLY a collection of massive beasts as well as mogu constructs, cloud serpents, dragon turtles, jinyu/hozen and many things new this XPAC.. So we'll be facing them in the series of combats and battles, until we fight 1-2 main bosses ..That I know thanks to this
So there might be a chance SoP is a ripoff of Will of the Boring Faceroll Emperor..
I am purely speculating this stuff and sincerely hope NONE of this is true, except that we fight IJ on siege demolishers in p1 and ourselves in p2! ThAT'D BE FUN!
edit: and based on the achievement icons, I can tell that Thok is NOT a dire orc boss he's probably an armoured wild saurok or another beast like oondasta.. THATS BECAUSE OONDASTA IS HIS PLACEHOLDER MODEL in the Dungeon journal -.- /fail