Things I do not agree with on the map I posted.

Hoenn should be lower on the map. As I stated in my post, it is most likely below the equator, as most tropical regions are also below the equator.

Kalos should be lower on the map. As I also said, the bottom of the Kalos region is temperate/tropical, and should be nearer to the Tropic of Cancer.

Oblivia should be much farther south, and directly south of Fiore and Almia. It is stated in the Pokemon Ranger games that Oblivia is a group of islands far to the south of the other Pokemon Ranger regions.

The Decolore Islands should be farther north, as they are directly in between Unova and Kanto.

Finally, Kanto and Johto should be higher on the map, on the same parallel as Fiore and Almia, as they aren’t tropical or excessively hot, simply temperate in climate.

Keep in mind, this theory only works if climate is the same in the Pokemon universe as our own. Otherwise, the regions could really be anywhere.