League activation is based on a couple of things, but first and foremost it is volunteers on The Blue Line putting together the rosters for the leagues, and researching the players. So if you are willing to go there and help out with NIHL stuff then they might get enough players into those leagues to make Riz and SI think about adding it in. However, Riz and SI also have tons of other things to work on in the game to make it right for overall purposes, and new playable leagues may or may not be something high on their list to do.
Now I realize this is a wish list, just saying if you want a ch