The new cartoon series that comes out later this year or early next year, looks to have Bumblebee as a primary character, and perhaps a show that focusses on Optimus as someone new to the leadership role (hmmm, a bit like Animated and Beast Wars).

http://www.tfw2005.com/transformers-...vealed-169912/

This all-new graphic novel adventure leads directly into the all new Transformers: Prime animated series! In this epic first adventure, battles across Cybertron have left Bumblebee and his fellow Autobots in need of a new leader. But is there anyone who can step forward against the threat of Megatron and the evil Decepticons?