For those of us who left the cinema puzzled and a bit confused after the credits started rolling for The Grey, there was actually an extra scene after the end credits that kind of vaguely explains what happens after the fight.
The scene only lasted a few seconds but in it we see a close up shot of the alpha wolf's stomach breathing heavily, its pretty much the same as for the wolf Liam Neeson shot and mortally wounded at the beginning of the movie before it died. I think it is trying show that Liam Neeson has killed the alpha wolf, or at least mortally wounded it and it is about to die.
BUT
Just on the edge of the shot you can make out Liam Neeson's head resting on the alpha wolf's body (you can't actually see his face or head, just his hair), so maybe he also died in the fight, but we don't know and it is pretty much left to our imagination as to his fate.
As for the movie and especially the ending, I think there will be many people very annoyed or even demanding their money back. I remembered when people complained about the ending...or non ending for the movie Skyline, well in this case the way the movie ended might upset people even more, since it really felt like the entire movie was leading you up to this one final battle...and then...cut. It is like leaving the climax of the movie out, but of course it also depends on your expectations of the movie and what type of movie you wanted to see.
