While poking around EE, stumbled across these case listings for the 1:50 Batmobile line:

http://www.entertainmentearth.com/pr...mber=MTL8788D2
http://www.entertainmentearth.com/pr...umber=MTL8788E

The new vehicles listed from wave 3 to wave 5 are:
-1966 Batmobile w/ trailer hitch
-1966 Batboat w/ trailer
-1989 Batmobile
-Superfriends Batmobile
-Tumbler in desert camouflage

Rather disappointed we're getting the Superfriends Batmobile before the TNBA/JL(U) one.