One of the rumors I saw on this website posted within the last 2 weeks is an actual leak. I love the speculation cycle for these games, so I will explicitly state which rumor it is, but I will drop a few hints as to which one is real, but without spoiling the games. If anything, the hints are to temper expectations, not to spoil the game.

>Galarian [regional] Forms do not exist.
>No Kalos Post game (Not a spoiler, just to temper expectations)
>Any rumor with less than 85 New Pokemon is Fake
>Any rumor with more than 115 New Pokemon is Fake
>The primary professor is female
>Version exclusive legendaries are both wolves, have dual typing, 1 of which is the Steel typing
>No new Megas or Z moves
>No access to Megas or Z moves prior to defeating elite 4
>Anything with 2 or more new Eeveelutions is fake
>New Pokemons’ Abilities have not been finalized
>Gyms are still challenged in linear order
>Alolan Variants not obtainable in regional dex
>All region’s are represented in regional dex
>Johto Pokemon do not play any significant role
>Kanto Starters do not play any significant role
>Meltan is integrated into the story
>There is technically DLC, but it is only for online gift pokemon as of now (DLC=Mystery gift due to movement to the switch)
>Fossil Pokemon make a return
>Starters all have dual typings not shared by previous starter pokemon (e.g. no fire/fighting, water/dark, grass/ground etc.)
>Bug/Dragon “leak” is real. Old footage so the battle hud was a place holder and background detail is incomplete