I posted the idea in the other Aturi thread as well, but what could really work thematically here is a Carrier ship (Gonzanti) as home base that you take with you. You'd level it up like your own ship (e.g. every player has to pay the cost of a Gonzanti card) and it would be actually on the board in some missions. It would make for a nice mechanism that if you lose missions, the rebels attack your carrier and you have to defend it, for example. B-Wing squads with Strike AI might be pretty harsh...
As for the wingman idea, why not give [number of players] TIE Fighters that are controlled by AI, mimicking player moves until formation is broken and then acting simply like the AI would until players realign with them or something? That would give you a whole other feeling in planning your maneuvers without simply resorting to "you control two ships".