Seems likely, considering the Ice Cream Twins toy. That would really erase a lot of my qualms with this release, what with Frenzy and Rumble being potentially too big, and taking a voyager slot when guys like Galvatron, Straxus, and Thunderwing didn't even get to be voyagers. I really hope you're right.
Unless BBTS has bad info the overall figure is in the same size class as Megatron and Grapple. If there is a combined tank it would be a lot bigger than deluxe.
Since we're all pulling them from the same place, lol, I'll just toss out a guess that the two figures are scout sized and make a slightly undersized Voyager.