I just had a thought. Maybe the mayor before you went to become a pokemon master, so they tricked you into becoming the new one, and now soeone else is going to get tricked into being the new mayor. I know Tortimer was the first mayor, but it's still a cool thought.
LOL Yeah I remember thinking what does happen when you don't bother to finish a game, is Simon Belmont still stuck in Dracula's castle? Did Crash Bandicoot starve to death because your no longer making him collect Wumpa fruit? And did Ganon manage to take over Hyrule when I stopped playing Legend of Zelda?