First is whoever is behind the overthrow of Ul'dah, at first I thought it might of been Taledji or Lolorito, but events in 2.55 showed that it clearly wasn't Teledji and most likely isn't Lolorito either. All we know about their plotting so far is that they desire the Omega weapon buried beneath the Cartenaeu Flats, and that the Sultana dissolving the monetarists hold on Ul'dah would of had a negative influence on their plans.
Another is Iceheart, she is more of an unknown still though. Is she actually another champion of Hydalaen fighting for a just cause, or has she been corrupted by Draconian influence?
Of course either of these plots could just as easily lead to both factions being manipulated by the ascians, but I'm hoping that at least one of them isn't.