Ben 10: Alien Force Season 3 starts this Friday!

i really like how ben is now having to start over with new aliens and attitude. it will keep him from becoming to big headed after saving the world. i am not sure about the change with kevin though!! i hope kevin will be able to change back and forth between his new powers and his normal self. it would be disappointing to discover he is stuck like this forever, because i would like to see kevin and gwen come together!! has anyone heard anything about them? or if kevin will stay good or go bad?