Yeah. I think Schumacher is scheduled in the next case to hit, which should be shortly. After that, it's the Toy Fair cars (yeti, Dinoco Chick and the McQueen repaints). I would think those would be out by the summer.
After that, who knows. There's rumors of a bunch of new stuff coming - Cartrip and Cutlass, Mia and Tia, Tex, etc, but nothing's been confirmed yet.