Bring back the button that lets you toggle baserunning setting while in-game, less than zero idea about why that was removed.
Give every position at least one archetype that gets it to 99 overall--a lot of players couldn't care less about DD, but do care a lot about creating a 99 overall player. It is beyond insane that 2nd base has multiple archetypes that give 98 overall when the archetype is still gold, but center field can't get higher than 97 overall using any archetype in Show22.
To that end, if SDS insists on "balancing" CAPs for online play (and not just instituting an offline/online creator), I'd much rather have perks that significantly improve stats and equipment that only provides slight improvements, as opposed to what it was this year (perks barely boost stats while equipment boosts them a ton)--that way it still effects the in-game numbers equally, but makes RTTS feel more satisfying.
Beyond that, in no particular order: more commentary; a better batting stance creator / more stances; your own in-game baseball cards based on milestones reached would be sick; contracts mattering (even something as simple as what the early Madden games did, where you have a static image of an apartment/house that gets better the more you earn); would all be nice as well.