I've started a petition for IDW to produce a comic continuation of Transformers Animated based on the outlines already written for season 4. I figure since this would be much cheaper than a new season on tv, this is the most likely form of continuation we're going to get.
I asked Marty Isenberg at TFNation and he said that if a project like this were greenlit that he'd make time to do it.
I'd appreciate if you guys could sign and share wherever you can.
http://chng.it/V8rRXfMXvL