I really hope it isn't done, and the game has been abandoned, and that all that's left of it is an arcade machine in their closed office playing the beta version, which turned out to be the best game ever made. Because if it is released, from what I've seen of it, it's going to be a crappy mediocre brown FPS. The gameplay demo released a while ago showed that they practically removed everything that could have been good, including the ability for it to be a remembrance and call back to the older, funner FPS'.
TL;DR: Get over it, it will inevitably be a pile of shite.