There's no reason not to believe BBTS' listings .. and they've also been posted on Digital Toys' website.

My thoughts? Long live Carscream, all you Trukk not Monkeyer's!
Whilst i'm slightly disappointed that this pretty much puts the kibosh on any non-car alt modes for Alternity, i'm glad the line i like the most is continuing.
I imagine they will take cues from the typical Seeker style robot, and the car is a nice obscure model, something pretty different to the realistic car modes we've had in the past.

I eagerly await pictures!