Oh, okay, one of the leakers who works somewhere within Hasbro has confirmed that the core class toy is it, the entirety of pretender Iguanus. The robot will look like the old shell, and the alt-mode will look like the old vehicle mode. Really not sure how that'll work at core class size.
Heh. Oddly enough, now I'm a little disappointed that they didn't take the two-part option. Would at least have been interesting to see...