>300ish Pokemon total, Hoenn Dex + 100ish pokemon expansion from new generations
>Beta Pokemon designs used as the basis for regional variants and other "fakemon" ie Beta Garchomp = Hoenn Garchomp, Beta Mantine = Hoenn Mantine
>Sparely use mega evolutions to flesh out evolutionary lines. Only two examples as of now are Banette and Manetric, with the former gaining a new pre-evo based on the voodoo doll pokemon from the spaceworld demos
>Improved level curve and difficulty
>reworked HM system
>all of the standard QoL stuff you'd expect
>every map is redone, to give you a feeling of playing Emerald for first time again
>gym leaders no longer use monotype teams, instead having two ace pokemon of their respective types, and themed teams
>side quests
>new legendary based on Beta Celebi
>reworked dialog and other text to add subtle lore, references to newer games, and removing any tutorial or 4th wall breaking text
>exploration and loot based on Bethesda's "rule of 3" as well as over 200 additional items to be found or purchased.
>reworked healing system designed to punish players who rely on healing items in battles
>retaining gen 3 features like poison faint, regular exp share, etc
>in game trades are now more like side quests
