This seems improbable :p If the combined effect of major bundles, promotions, the MCC and a significant price cut weren't enough to pull the X1 even close to inning a month WW, it's unlikely it will ever manage to do it consistently enough to close the current (and growing) gap.
This also doesn't account for the fact that Sony still have their price-cut card at hand. The X1's aforementioned inability to win WW was against a console with almost the same entry price it launch with. It Sony were to cut it by $50 the X1 would have an even hard time.
On a side note, cherry picking is a poor platform to build an argument. Why mentions titles like QB, Halo and Gears, but downplay Sony's offerings (1886, Uncharted 4, Bloodborne, God of War etc) as "a couple of indie games and gained console exclusiveness to some fighting game". Doing thing like that gives the impression you're trying to push an agenda. Not saying you are, but that's what it implies. Seeing as it's not something i can remember seeing you do before, i'm inclined to believe this is a joke thread :p