I can see where you are coming from O: I kinda feel the same about ash but they are still fun
The idea of ash being the champion and having a "in the future" series doesnt sound so bad O: Maybe for the new generation of Pokemon? I mean ash has been there for a long time and still has the same age, i believe its 10 xD
An adult ash would also be nice, maybe his son can be the protagonist? xD I heard they wont stop until the national pokedex hits 1000 pokemon so we still have time for change!