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

[AgentZorn]

I believe that the PS4 will maintain 50%+. The PS4 is extremely popular this gen and I don't see it declining anytime soon. I doubt the NX will be very successful due to some very questionable decisions that Nintendo has made. However if Nintendo really pushes the NX there is a chance that the the PS4 market share will dip below 50% but not by much.