I agree with conegamer about ninpie. He will burn out in a few months when he has 50k posts, and only post occasionally like Soriku.
MARCUSDJACKSON keeps teasing that he will leave, so maybe he will follow through with that.
Montana seems to be alot less active at the moment too so he might be a contender.
Oh, and kowenicki might leave soon too because Seece left.
EDIT: Also, Badgenome nearly left the other day when I told him that even though Machina and Seece has left he shouldn't leave because he still has morenoingrato..
My prediction threads:
Wii U will sell under 40m units (made on 14th September 2012)
PS Vita will sell under 20m units (made on 30th September 2012)
Wii U will sell under 7m in 2013 - I was right