I like a good campaign, it makes me want to play more because I want to know what happens next. BW had a very nice story, and I feel that other Pokemon games should have a similarly deep story too but a different plot and setting, obviously, so they remain interesting. As long as the story isn't too adultish for kids and too kiddish for adults, it would be good to have stories like that. Also, as long as it remains a Pokemon game, meaning don't go too in-depth with the story and make sure the focus is still on Pokemon, because franchises have died like that. I know there a quite a few people that want the game to end so they can do comptetitive battling and stuff, but the majority of people who play the game play it because they like, or love, Pokemon. And I think a fairly deep campaign appeals to that demographic.