Well, I would be really excited about a new generation with new pokes and a new region, but I would be disappointed at the same time because GameFreak is slowly running out of ideas for new Pokes, and we can see it in the poor design of the 5th gen Pokes.
Yes, I can see the franchise dying by 2015 or so (*cry*) but they still have potential for games before then. I think they should make an official Pokemon MMO, although it might be a risky choice. Real time battle seems kinda gimmiky, but having more control of your Pokemon (although not following the theme of you being a trainer) is a nice feeling, as I know from playing mystery dungeon, and Super Smash Bro. games, I guess it might be interesting, and character custimization is a must!*hates stupid visors*