xbox will win november
playstation maybe december
but both xbox or both sony, is possible, too
if sony is going only with the 399 standard and 449 destiny sku into the whole holiday season, they will probably lose both month
if they go with a 349 standard sku and 399 gtaV+tlofu rmk bundle, they can win even november.
but sony is doing retail copies in theire bundles and special boxes. so they need more time to prepare to lauch and ship them. i doubt they can manage that until the 18. november (gtaV bundle already announced for europe is an indicator)
only thing they can do is retailer promotions, or prepare for black friday and december.
so i go with 80% chance xb1 will win november
35% chance xb1 will win both
20% chance sony will win both month
65% chance sony will win december
edit: btw i said back in april, that ms probably will win november and sony december. thats not unusual and would be possible without this pricecut. its save play from ms