I kinda figured that already, what with Unicron not being Earth and all. Is there more to it than that, though?
I guess maybe with a couple more movies in-between they could make something vaguely work. But there's definitely not an obvious straight line from where the characters are now to how they start off in 2007. And even when I thought they were about to make a connection to the Bay series at the end, man they went in a WHOLE different direction.