Heres a couple things I would like to see in MLBTS Franchise:
The ability to work with pitchers to make changes to their pitches or their windup. I would love to have the ability to sign or trade for a pitcher and then have them make changes to their pitchmix or maybe suggest they go from the stretch (similar to what the rays did with Glasnow)
More trade slots making it 5 for each team, allowing for more blockbusters when trading stars.
A dynamic slider that allows for either ratings increases due to performance or potential. Really frustating to have a .310 BA season with a player but since hes a C he stays at 72 Overall.
Ability to make key prospects that you want getting everyday ABs or in the rotation so that there is less risk of having them benched during a sim.
Make Free Agency feel more important, its not fun to just stare at a screen and then sim a day and not really feel like it was a win or a loss.
The ability to set up more bullpen options (Fireman, Stopper, ETC) and put more specifies on when you want pitchers to pitch (i.e Do not bring in a stopper if the team is up by 6+ runs)
I would love to see Momentum stats where if a player has a good month in your Franchise he gets a ratings boost until he cools off, or atleast see it happen more.