Top 10 Things that Most Need to Happen in Pokemon Diamond and Pearl Remakes

Fix the game's speed

Base the story on Platinum, not Diamond and Pearl

Expand the Battle Frontier

Make the Event Legendaries part of the main game

Add more evolutions to old Pokemon

Add more Mega evolutions

Upgrade the online capabilities

Overhaul the Great Marsh

Expand the Underground

Bring back walking Pokemon

Bring back the Game Corner

More fire types available during the story

Make contests less luck-based

Give Arceus a "1000 arms" form

Add more Z-Moves

Make Sinnoh open world on the Switch

Give Cheren a boss battle

Bring back Lillie

Bring back Guzma

Make Regigigas usable

Make the game playable on both 3DS and Switch

Nerf the EXP Share until after the completion of the main story

Allow players to add Palkia or Dialga to their team for free, without the need to catch them

Remove the EXP Share feature

Remove the restriction on nicknaming traded Pokemon

Ensure that if you are playing Pokemon Diamond, you can still get Palkia after

Ensure that if you are playing Pokemon Diamond, you can still get Palkia after defeating the champion, and vice versa for Pokemon Pearl

If you have accidentally sold one or more of your Arceus plates, they should

If you have accidentally sold one or more of your Arceus plates, they should respawn after defeating the champion