I wouldn't be surprised if it stayed in the top 20, but I can't see it cracking the top 10. There's just so much competition.
If I had to guess I'd say The Last of Us will settle in around 17 or 18.
I don't think it will get lower, even more now that the game is coming always with the PS4 in USA, some guys here haven't played it yet, also new users will probably tend to know it more from now on.
The top 10 maybe it's too high, but Uncharted made it, TLOU can as well.