>>46376035>NationalDex, with all 800+monsIt did play a somewhat big part of the originals, plus there's excuse not to include it this time around. Then again, there wasn't a reason to cut it in the first place either.
>Mega EvolutionFinding gems and mega stones in The Underground would be cool
>Battle Frontier>Compatibility with Sword and Shield>Move Tutors>Difficulty options>Being able to toggle Exp. on, or off. 