I'm going to take a really big guess here and say, Soundwave and Devestator? I'm probably way off, but, those are the only two that come to mind when I see those two.
His idea. We haven't seen the cons yet, and the only two that we know will be in the show are Megs and Screamer.
I don't care just as long as they have those two and maybee soundwave then I'm good. I think thats devestater and soundwave to.