In the future maybe but we also have to look at the cost of doing so also. Decisions like that aren't being fueled by candy dude, it cost money. Also, if NA keeps up with being garbage outside of NA do you honestly see fans or many years of NA/League being really considered a must watch game in the future? League right now are in a tight spot with other games for views and attention with Overwatch and overall, just plain and simple people doing other things other than league at the moment, to spend their attention to a 1 decided game.
All 10 NA teams are in California right and yet, like 70% of the population doesn't even really support, watch or care about(EF, NV, TL, the bottom half teams) so, separating them into different states isn't a move that will make a mark on fan support when 1 state doesn't even care about those teams.