In theory yes it should come out later so it is closer to competition specs.
However I think they will be forced to come out earlier because the sales of Wii U will vanish.
I think they got themselves stuck between generation with the Wii U unfortunately. So their next console assuming it comes out 2017 will be at least 2 years before PS5. They would need to predict what power PS5 will have and try to be reasonable close to it.
However knowing Sony and Microsoft they will see what the next Nintendo console has and just double it lol.