Bonaventura also stated that Michael Bay will return to direct the fourth movie featuring the Robots In Disguise - and that it will be a reboot.
"Michael is going to direct, and it will be in the Summer of 2014," Bonaventura told MTV. "He is excited, and I think the challenge is we are really going to do a reboot. And what that is going to be we don't even know yet."
Bonaventura goes on to talk about the reboot, and offers that it will essentially be a whole new story. In regards to the cast, the producer states of course Optimus and Bumblebee will be there, but the rest of the cast will be essentially new as well.
Here's the video: