While MLB The Show 25 has not been officially announced or  MLB The Show 25 Stubs released as of my knowledge cutoff in October 2023, we can speculate on potential gameplay enhancements and graphics upgrades based on trends in the series and advancements in gaming technology. Here's what fans might expect:

Gameplay Enhancements

Improved Player AI:

Smarter defensive positioning and base-running decisions.

More realistic pitcher-batter interactions, including adaptive strategies.

Enhanced Fielding Mechanics:

More fluid animations for diving catches, wall climbs, and double plays.

Improved throwing accuracy and error systems.

Dynamic Difficulty Adjustments:

A more refined system that adapts to player skill levels in real-time.

Expanded Game Modes:

New features or storylines in Road to the Show.

Deeper customization options in Franchise Mode and Diamond Dynasty.

Realistic Physics:

Better ball physics for hits, pitches, and fielding.

More realistic collisions and interactions between players.

Online Play Improvements:

Reduced latency and smoother matchmaking.

New co-op or competitive modes.

Graphics Upgrades

Next-Gen Visuals:

Enhanced lighting, shadows, and textures for stadiums, players, and equipment.

Ray tracing support for more realistic reflections and environments.

Player Models:

Even more detailed player faces, animations, and buy MLB The Show 25 Stubs body types.