Ok, fine, so you want the Gen 4 remakes.
What exactly are you trying to see from them? Keep it somewhat realistic
>return of Platinum Frontier (they couldn't possibly do us like that twice.... right?)
>Megas: Sinnoh starters, luxray, roserade, vespiqueen, mismagus, honchkrow, toxicroak, tangrowth + a few from other gens (including the eternally cucked flygon)
>Z-judgement on arceus, always hits for super-effective (note: holding the crystal means its always normal arceus)
>in-game events for manaphy, shaymin, darkrai, cresselia
>Origin Dialga/Palkia
>return of the gen 6 bottom screen (including the pss stuff)
>contests return
>spruced up regional dex (like more fire types please)
To be honest, shit like difficulties, player customization, and regional forms ain't happening.