ppl keep lookin at it like dawn is the one who is going to disappear very soon. and that very well may be true... but i also see that it can go another way. In the episode "An Elite Meet and Greet" Ash encounters one of the sinnoh elite four and by the end of the episode lucian had told ash that he would accept his challenge after he beat the sinnoh league. well based on the past and incredibly obvious foreshadowing in pokemon that possibly means that ash might win the sinnoh league and defeat ( or challenge and fail against) the elite four. If he actually defeated them, he'd become the champion and a pokemon master which has been his dream. this could possibly end his rein of the pokemon anime.
other supporting facts is the difference he has displayed in his training. he is evolving his pokemon now and really putting incredible strategy that he never displayed before.
and another possible supporter of this topic is Dawn. Dawn is the first companion that really keeps Piplup OUTSIDE of its pokeball. she also is very much like ash was wen he first strted.
Now naturally this is just a theory that might get destriyed by just one fact. If any of you can produce that it would be great, also it'd be cool if you ight add wisdom to this theory supporting it even more because i'm really strting to wonder and would really like to see if i can figure this out before the time comes around when they go to the next region.
