Alright, so Darth Revan will not happen.
Not anytime soon at least (they‘d have to change their „LS + DS only“ policy.
Additionally, I keep wondering. Which rights belong where?
I have absolutely no clue, but for example we had the Fantastic 4 and Spider Man issue in the Marvel CU. Could be law issues here as well?
Next, I think there are other characters and eras that could be explored.
Original Sith for example, Darth Bane installing the rule of 2, Dark Troopers (Phase 1-3) from various video game so of old, etc, etc ,etc
Young Yoda, more Episode 1-6 characters to be able to create -although probably not the most powerful- flavor teams.
Full old-school rebels team
Full old-school troopers team
While we are at that, PLEASE! If you going to add FO Riot Trooper at some point:
PLEASE! Get rid of the shield and give him a provoke called "Traitor!!!" With the spinning stun-baton move from TFA