I saw an upcoming release list for Hot Wheels on a HW message board, and on the latest one that got posted some new 1:50 scale Batman vehicles were listed:
Batman 2009 1-50 scale-1966 Batmobile-black
Batman 2009 1-50 scale-Bat Boat with trailer-blue and white
Batman 2009 1-50 scale-Bat Cycle with Sidecar-black and white
Batman 2009 1-50 scale-Batman Returns Batmobile-black
Batman 2009 1-50 scale-Batmobile Shields Up-black
I assume the '66 Batmobile and Batcycle are rereleases...which bites, but if we're truly getting the Burtonmobile then I'm too excited to care.