To make a counter point, I think we have yet to see how dominating / doomed these systems are.
As far as domination, the PS4 is outselling the X1 by 50% WW while still supply constrained and has one more major launch to go. By the time it launches in Japan it could be outselling by 100%. Will Titanfall be able to double the X1's sales? If not then PS4 will have a significant lead this year which will start swaying more developer exclusivity in it's favor.
As far as doom, with still low numbers of Wii U installed base and now that combined PS4+X1 sales are greater than Wii U sales I think we'll see even worse 3rd party support. Personally I don't believe you can have a very successful system without solid 3rd party.
So while I totally support that it's too soon to jump to long reaching conclusions, things can go either way - more or less domination, more or less doom.
