So it's Malibu Stacy with a new hat?
I personally don't think it's necessary, but having characters for different reasons and abilities...
Example: Han Solo
Ep 4 outfit = Scoundrel, Quick Draw, Last Min Save (extra attack when an teammate is reduced to 5% health)
StHan = as is
Ep 5 outfit = Rebel, higher Speed, higher Crew Power
Ep 6 Endor outfit = Rebel, Cloak, Taunt, Heroic Sacrifice (takes hit for a teammate who is about to die with 10% health)
Since we have GK and Old Ben, it would be fair to have Ep 1 Padawan Kenobi, he has more speed and aggressive attacks. Different health and defence from the other 2.
As for Clones, I would prefer to have more. We already have Stormtrooper, Snowtrooper, Shoretrooper, Death Trooper, Sandtrooper, Sandtrooper Commander, etc.