I think you're right. Look at the Grimlock - the mouth is moulded shut. That's got to be a legion size figure at most. You can tell from the size of the hinges on the neck and the back. No way is that a voyager. It's almost like the Cyber Battalion stuff.
Man! look at those elbows and hands! These are shampoo bottle central!
They remind me of the naffness of Action Masters (ducks). No wait, maybe they snap fit together like Hero Mashers. They look the same kind of cheapness. These surely aren't the line replacing RiD? they look more like the Cyber Battalion stuff.
I agree. I think we saw something that said they're voyager size, but carded. These are going to be big hollow rubbish. Maybe Hasbro have evaluated the cyber battalion stuff and decided to do a Poundland line.
The transformation suggests something simpler, but larger than legion. The bumblebee car nose, and optimus rear end seem to be knees with the rest of the car/truck being a solid block. I'm guessing these are from one of the rubbish side lines. The Stepchangers, or a gimmick we've not seen yet (we'd not have understood the crash combiners seeing them like this)