Ship synergies? Biggs Darkfighter.

Yes, there is information about ships that has been datamined from the client. That plus Biggs' description plus the holotable means we're getting ships, but no one can say when.

Is he worth powering up? Well, we have no idea what his bonus is, who else will have a bonus or how ships will work. But if you don't need your Galactic War tokens for anybody else, it can't hurt.