Not to get too "Rooshian" on you, but I'm going to predict the word "manosphere" gets added to the dictionary somewhere between 2014-2015.
I know, I know. It's two years so I'm cheating a little. But mark my words, it will be entered in the official English lexicon.
Because, well, it already has. It's whether the academics deem it "worthy" in their little world.