Recently Banpresto was showcasing merchandise for the up and coming Pokemon movie: Kyurem VS. The Sacred Swordsman Keldeo at a Japanese trade show. Along with this merch were five pokeballs that represented the five new pokemon that would be showing up. Apparently the first three are Meloetta, Black Kyurem, and White Kyurem. However the remaining two are still unkowns.
So back when they announced that Meloetta was a “new†pokemon, I did a little eye roll. Meloetta was already known in Pokemon Black and White, the game that is. So it’s technically not a new pokemon. I’m guessing that one of the “new†pokemon is most likely genesect. As for the other one, it may just be a new pokemon entirely.
Source: Nintendo Universe