Part of me hopes that they do clean Human Alliance-type versions of the remaining two as well. It always struck me as sort of a waste the way they mixed them up and didn't complete the HA set.
Like, Deluxe fantasy lots-o-guns versions for the kids, and more-complicated, alt-mode-accurate, driver-interactive versions so that NASCAR fans can get 'em if they want. It really seems like Hasbro's marketing division dropped the ball on this one.