It was only a matter of time bt looks as if there will be a Transformers MMO. I don't expect it to do well, there has yet to be a MMo based on a license that has been succesful. I don't even have faith in the upcoming Star Wars one.
http://www.massively.com/2010/11/11/roll-out-transformers-online-going-worldwide/
http://www.massively.com/2010/11/11/roll-out-transformers-online-going-worldwide/