If they want me to buy another Y-Wing, it's going to take decent sized guns on the front and a droid socket on the back (although the former might overrule the latter in terms of my purchasing one if it comes right down to it). A new pilot using the Gold Leader body (with a different head and helmet) and a repainted R5 droid would be the most welcome additions, but that's not likely at that price I think.
The TIE Interceptor is going to be a definite for me if it uses the new style (non-battery pack) cockpit mold. The arena beasts won't get a second look, as I already have all three, and 5 years ago the three of them combined didn't cost 60 bucks. The only way I can see anyone who was around back then even considering buying that set is if they also included an Orray with a Geonosian picador. Other than that, it's an easy pass for me.