Shadao
Aim to be a Pokémon Master
I foresee two possibilities:
1) Ash simply continues to the next region for a new Pokémon adventure (possibly deciding to travel across the globe this time).
2) If winning the Pokémon League means Ash is now a Pokémon Master, the show must end. An Ultra Wormhole will appear and Guzzlord shall come out to eat the entire universe, rendering it back to the chaotic void that Arceus once slept in!!! Okay granted, that's a worst-case scenario. The Guzzlord's ravenous appetite might in fact be very localized, limited to merely to just eating the Pokémon's local galaxy.
1) Ash simply continues to the next region for a new Pokémon adventure (possibly deciding to travel across the globe this time).
2) If winning the Pokémon League means Ash is now a Pokémon Master, the show must end. An Ultra Wormhole will appear and Guzzlord shall come out to eat the entire universe, rendering it back to the chaotic void that Arceus once slept in!!! Okay granted, that's a worst-case scenario. The Guzzlord's ravenous appetite might in fact be very localized, limited to merely to just eating the Pokémon's local galaxy.