Here is an idea. They could have an all region game. But it would only work as a MMORPG, onlne with multiple players paying a fee to enter. GF can add more areas, gradually improve graphics and import species.
By not serving a finished game, GF doesnt raise the bar, so they don't have to worry for higher expectations, a sequel next year or whatever.
Additionally, the newer main games would look more polished than the MMORPG and have the newer mons and region.
By giving it a different structure, GF doesnt have to worry about overlevelling after completing more than one region, or lack of narrative push and any other problems an All Region Main Series game might have.
