I'm sure there will be more than one, but generally speaking ....
Dance dance revolution - get out of bad circles? [I personally hate this one, except in moderation]
Strategy and coordination?
Fights in phases that must be learned?
Long tank and spanks?
I'm sure all of this will make an appearance at some point, and more, but I'm just trying to get a sense of whether the boss mobs in Pantheon dungeons or raids will feel EQish, WoWish, or something fresh and new?
EQ1, EQ2, SWG, SWTOR, GW, GW2 CoH, CoV, FFXI, WoW, CO, War,TSW and a slew of free trials and beta tests