i was definitely surprised when mine arrived on thursday. i have put a few hours into the remake and a few hours into multiplayer. from what i can tell, the remake is still fun and still seems unique due to the significant amount of time you spend without a gun. the multiplayer seems like it can be broken down into 2 categories: "pitch black " mode and "everything else". the pitch black mode is unique and has been by far the most popular mode early on. it can be very tense when you are playing as a soldier and you keep catching glimpses of riddick but then he gets away...it's definitely the highlight of the multiplayer portion of the game. regarding "everything else", it all feels like standard quake/unreal fast paced multiplayer with tons of deaths and kills for everyone...not terrible, but not really a selling point either.
i haven't played the dark athena campaign yet, but from what i saw in the demo, i'm expecting a single player experience that relies too much on gun play and not enough on what riddick is all about...sneaking around in the dark and killing people one at a time.