I too think it will be an SM Raid but a New one with a Portal behind sm at the stables or hearthglen. Why? Because now we handle in quests for worldbuffs in darnassus an IF and TB and OG. The missing cities with ties to the SM Lore are UC and SW. PvP will probably be in tanaris or blasted lands.
Why post this 1 week after launch and not during the launch weekend? It makes literally no sense.
I was able to full clear Uldaman with my guild last night in a party. Last boss is 47 elite and really difficult, but everyone gets a 14 slot bag from the disc quest.
Players were asking for this and for updated class guides 3 weeks ago, not 9 days after release.
There are too few bosses in Sunken Temple for it to be considered a raid. It is more likely that Maraudon, ZF, and Sunken Temple will be updated dungeons featuring items for levels 41-50, and BRD will be a raid with many bosses and quests. It will serve as a prequel to the further Molten Core event and hype at lv 60
Interesting theory on what may be the next raid, ST or Mara would be nice to do, BRD would be also a good alternative too. They did show a scarlet fountain and i think with that one little pic, we thought it was gonna be but everyone atm is pugging SM to 40. Here's is my crazy thought, Stratholme could be the scarlet Raid, plenty of quests and lots of Bosses and if they remove the barrier to Baron from the live side into the dead side, you get the artificial raid barrier already, then a whole other raid side plus , there is also the raid portal already there waiting (almost begging) to finally be used after almost 25 years ....