JTR is still good for raids and as a GAC offense team but wont help you in squad arena and your Resistance team is still a long way from the 7*s you need to unlock JTR.
A prime CLS team - raid Han, Chewie, R2, 3PO - can compete with JKR on offense but will probably drop more on defense and that's a lot of heroic/legendary toons. Your Ewok team is sub-optimal but should give you a shot at 5* Chewie if you gear and mod them enough.
Revan Jedi are useful everywhere and easy to acquire.
I would recommend focusing on Revan Jedi and continuing to work on other heroic/legendary toons on the side.
