>>35962864It's going to be a Gen 8 Mythical.
LGPE will be the only way to obtain it (by transferring it from LGPE to GO to Gen 8 Games), much like how Poke Ball Plus is the only way to obtain Mew in LGPE.
This is just testing the waters to see how willing people are to buy an entire game just for one Pokemon to get in ANOTHER game they'll have to buy, just like how Poke Ball Plus is testing the waters to see how willing people are to buy an entire shitty gimmick JUST for one Pokemon.
