Yeah, what they implied there doesn't bode well for the Hoth AT-ST to be in a battlepack considering the price of the AT-ST last year coupled with the price and size of UBP's (which included the much smaller AT-ST). What I do think they're going to include is one will have the Hoth Turret... We asked a question here some time ago about whether or not we'd see the Hoth turret again, and Hasbro said they were looking at various ways to get the turret back out to collectors as they knew there was demand for it.
That, I believe, would be justification for a larger, but not quite UBP sized, battlepack.