Yes, yes. I don't mind if the Champion rotates between Shawna, Trevor, Tierno, Calem/Serena. That would add a new twist and experience to old players. It's like every time you face E4, you wouldn't know which trainer to expect in the finals. Though I get the feeling that the Champion title will belong to Calem/Serena or even that scruffy professor. :(
I have my own favorites, but I have to wait for my friends to decide then we'll be trading with each other!