Although I don't oppose political themes throughout the story, I hope they keep most of the actual politics off screen. They will need to establish the political climate of the galaxy post ROTJ, but once they do so, keep the focus on the struggle of the protagonists.

Surely the antagonist's goals will have clear and serious political repercussions, but they need to express that through the characters, rather than through senate meetings and boring exposition. And I think J.J. is just the guy to do that effectively.