I see all the speculation about the Old Republic characters being needed for Revan, but I can't get past one detail: there is no synergy between the OR faction. Bastilla's lead is the only one for the five characters, only helps one other toon in the faction.
Compare this to the strong synergies for Bounty Hunters (OG Chewbacca), Phoenix (Thrawn), First Order (BB8), Empire (R2), Jedi (Yoda), Rebels (Palpatine), and the rebels/resistance toons needed for CLS and JTR, etc.
Wouldn't the Sith being needed to unlock Revan make more sense? Maybe a new faction for Traya, Sion, Nihilus, Marauder, Assassin, and Trooper is created.