Relatively calm week, as expected, after BF, anyhow regarding current gen, XBOne suffers from the highest percent drop WoW (and as absolute numbers too), while NS manages to have the smallest both percent and absolute, so staying very close to PS4 globally. This suggests NS could enjoy consistently high sales during all the Xmas period. PS4 can still beat it on the whole period, but XBOne, despite being very strong too, as usual, during BF and Xmas period, will probably be third, behind NS.
Anyhow, both adjustments and big weekly ups and downs can still happen, there's still quite a large margin of unpredictability.