>>49602148I get what you mean, and it'll likely be the case if they add DLC to PLA. But I don't think progression with Pokémon models isn't measured linearly but as branches. It all depends on what features and mechanics each installment will use.
It's clear that no one wants recycled models and animations, it's been a complaint topic since Sun & Moon.
I don't think even GameFreak has a clear idea of what features are going to be added next. There are countless of animations from XY that are missing from PLA (such as petting) because they aren't used in PLA. I'd love to see all of that, but I don't think it's remotely convenient for GameFreak.
Imagine Nintendo drops a Switch 2 with 4K next year, then all models and animations would need to be recreated pretty much from scratch for the next Pokémon game, and then all of the previous progress would've been in vain just to appease that 0.01% of players who want to use Bruxish.