I think the game is strong, and the theory crafting that grand arena has developed is fun. Of course I’d love to see Jedi Luke, with the possibilities of a Jedi Faction tune up. I’d also like to see the Separatist, droids and Clones get some love.
That said, I wouldn’t want to see Jawas get a reworking (or any semi-known weaker character set). There might be a way of making jawas a purely anti droid faction, but I’d never like to see them compete with Empire or Sith characters. A Jawa anti droid team in grand arena could be what is needed in the future if droids ever get a powerful leader.
I think the possibilities of making specific anti teams is there.