The only "alternate continuity" should just be Legends. Besides, although sounds cool, Redeemed Vader is just a lazy palette swop .
Instead you could add many , many cool characters to SWGOH , with just Legends. I would Kill to see Wraith Squadron added to the game , or Jerec and his followers from Dark Forces 2
Yes, Jerec and other characters would be cool to see added. Redeemed Vader is but one of the many they could add into the game and if it's just a simple palette swap (which they already have done with Nightsister Acolyte & Initiate or Tarkin & Piett or Veers & Starck) then it would be easy to implement.
