I really like the gaming aspect and especially the http://www.okcashforcause.org/
I don't think it'll be a big player. But OKcash will certainly be a valuable project. I see lots of positive stuff. But larger currencies like NEM which support smart contracts and gamecredits (to a some extent) can diminish the value that come from gaming.

Currently I think OK will be a survivor of the cypto bubble but won't be a big player. I think of it like the Opera web browser.