Takaru
Werk, Werk, Werk
Kanto is not going to be taken out. Johto is a fairly small region compared to any other ones, not to mention no matter what your going to be in Kanto at the point in the game were you cross Tojho falls. Kanto will stay they won't take it out, the Pokemon Leauge is even in Kanto. The Johto region won't stand alone.