Nautilus said:

It still depends on too many variables that we dont know of, to make a reasonable prediction, even a bold one I might say.With that being said, it will obviously pass Neo sales, just because Neo will only cater to the diehard PS fans, since casuals will buy the regular one since it will be the cheapest.

The Neo is a PS4, it will have all the PS4 games and won't have any game that's not on the PS4, so why separate the 2 skus when Sony itself doesn't?

The PS4 is starting with 40M as of now, probably over 50M by the end of the year, so there's 0 chance it will outsell it by definition :)