It aint clear who a pokemon master is. how can seeing all pokemon make you a pokemon master. it may make you a pokemon watcher but training is important to become a master. Then ash has no reason to catch and train pokemon. a pokemon master is probably the strongest trainer. the anime will end at some point and they could start off with a new main character when the rating hits rock bottom but the games are more successfull and they will keep on continuing and make more games and creatures till they sell.
“We do have a lot in common.
The same air, the same Earth, the same
Maybe if we started looking at
what's the same instead of
always looking at what's different,
...well, who knows?”