Considering the fact that LOTS of competition will be going against it by the time it is released - Battlefield 2, F.E.A.R., Pariah, Project Snowblind - and the fact that S.T.A.L.K.E.R. is not very popular compared to some of those titles I mentioned, I think that...
...S.T.A.L.K.E.R. is D.E.A.D.