I, for one, like continuity in sequels and I think we need Shia Labeouf, John Turturro, Tyrese Gibson, etc. and Michael Bay (although I think Spielberg would do fine) to keep the series going. We need Optimus, Bumblbee, Ratchet, Starscream, Soundwave, and Megatron for sure to return. We don't need any more bots that Bay comes up with. There are plenty of G1 bots that we haven't seen yet. I don't want to watch another TF movie and have to guess which bot they are only to find out that they never existed in any form. No more creations like the wreckers, the Dredds, Dino, Que, the Twins (God they were horrible), the blonde 'terminator' girl from ROTF...etc. Show me Hound, Trailbreaker, Sunstreaker, Prowl, Mirage, and a real Wheeljack. Show me Skywarp, Thundercracker, Rumble.
I don't want to see any bots resurrected that are dead, although I'm having a hard time figuring out what they will do w/o Megatron cuz it would be dumb to resurrect him again but on the other hand, w/o him.......