>>38643737this
also
>>38643745they should rework the ability system and have the weaker mons capable of having multiple abilities at the same time (and more often than not unique ones that are only available to that mon/line as well)
and of course keep that shit away from the mons that don't fucking need more power, though that goes against marketing and that won't happen because mega charizard and mewtwo and rayquaza will end up with five of them
but mainly
>>38643737and finally, though that won't happen for another decade, procedural visual traits
scars, markings, ever so slightly different fur and feathers, add that to the weight/height system of LGPE which is already a great start and you could have a manlet machamp with a missing eye, or a cute eevee with a slightly longer tail, or a fat pikachu
but yeah, that would require a lot of work, so I don't see it happening anytime soon
and past that point, though that gets in the realm of wish-fulfillment, nature based AI for your mons
have every single one mon capable of expressing some amount of feelings depending on its nature and on its mood
a tsundere gyarados? a clingy starter? a lonely defeatist and depressive psyduck?
have them looking sad after a defeat, or the complete opposite, have them looking fucking pumped up and ready to try hard the little shit that took you down before, all of this depending on their natures and personalities
though I'd be fine with them giving this amount of expressiveness only to your starter, like they did in LGPE
and hopefully that'll be a thing within the next few gens