Ok, sine we're all here, here's my hopes for a DPPt remake:
-Obviously, implement all the changes to DP that were made in Platinum (
https://bulbapedia.bulbagarden.net/wiki/Pok%C3%A9mon_Platinum_Version#Changes_from_Pok.C3.A9mon_Diamond_and_Pearl)
-Add some QOL improvements (for example HM moves can be forgotten like TM moves)
-Bring back the Poketch as a phone app and/or seperate accessory (ala the Pokewalker) that interacts with the Switch while you're playing the game (since the switch doesn't have a second screen)
-Make the Giratina segment from Platinum be a part of the normal spear pillar segment invovling dialga or palkia in DP, instead of doing some shitty distortion episode
-Don't cut any features. If they cut underground, I'll be pissed
-bring back the union room, global terminal, and wi-fi plaza
-Basically, treat DPPt like how HGSS treated GSC
-Plus, hopefully don't have the gym leader designs be as shitty as op's image
Also, they should obviously fix all of the major problems SwSh has.
And bring back all of the pokemon.
And possibly implement some new Pokemon as well?
But I just know we're going to basically get ORAS but worse.
