Who run the world? Prince Wu!
The Gaang in The Legend of Korra.
mako has let go of earthly tether. he has entered the void
One of the areas that she has left to conquer is where Republic City is located. What if she plans to overthrow President Raiko and take over Republic City? My prediction is that is what will happen to make her become the antagonist and, quite possibly, will require Korra to return.
I missed you so much.