Can the PS4 keep its 50% Market Share even if the NX is included?

[Qwark]

Even though it is kind a BS to include a 9th gen console, I will bite. I think the Xone tops at 60m and the NX could go either way. As for my current estimate I predict a 40m seller. If this gen is long enough I can see the PS4 pulling 115m so it's gonna be a tough one.