Season 5 Theory.

So my theory is that the map is leading the girls to places where there are problems, as well as their counterparts, Starlight for Twilight and Gilda for Rainbow for example. They will eventually solve all the problems and each of the girls' counterparts will change for the better, becoming either bearers of their own elements, or replace the girls when/and if the original elements are needed once again.

Comments

[Tavi4]

That has crossed my mind.

[Duelist96]

Personally, I think Gilda's counterpart would be Pinkie Pie, while Lighting Dust would be Rainbow Dash's counterpart. Either way, I really like that theory. I really want to see Lightning Dust make a return.