Notes:

Long story short, some madman on 4chan leaked an early build of Pokemon Sword from March 2018, and people just discovered the pokecamp feature is already in said build, along with most of the cut mons removed during dexit.

Note that while Aurorus is coming back for the new expansion, Greninja is still MIA.

EDIT: Recent info so far indicates 20 pokemons exist in said build (none from gen 8). Will update as soon the situation evolves.