More Star Wars?

Maybe have 

Caustic as Darth Vader

Revenant as Palpatine

Wattson/Wraith as Leia (some lore in-game shows Caustic is getting “paternal” with Wattson, kind of fits with Darth Vader being Leia’s father. Or, Wraith because Wraith has spooky space powers, and Leia has some dormant-ish force powers.)

Mirage as Han Solo 
Bloodhound as Boba Fett 

Pathfinder as C3PO

Bangalore as clone troopers?

Lifeline as a doctor robot

I can’t think of any more

Edit: It is possible, I think. EA makes the Star Wars games, like the SW Battlefront series. Sure, Apex hasn't gotten any crossovers yet, but this is the very beginning of the second year it has been out. Give it time.