>>51022705Personally I think 2 maximum
>Japan Chugoku region + Shikoku island as one = One new region east of Hoenn and west of Johto (with hint of Eastern part of Kyushu-like island connected to Johto Cianwood town)>Japan entire Tohoku region = One new region north of Kanto and South of Sinnoh. Sinjoh might be included here.But I doubt Game Freak want to made this one since it reminds them of GSC + HGSS where they were forced to connect Johto with Kanto. Hoenn and Sinnoh were created at the exact opposite of Japan AND isolated from Johto-Kanto heartland AS "borderlands" of Japan in Pokémon world.
Putting a new region geographically in between preexisting region = imperative to connect it with those older regions, particularly route numbering. (this is in Japan and you could expect many Japanese fans' Gen 2 nostalgia to rise again, something that GF tried so hard to shutdown Johto because it is too tedious for them).