Well... say goodbye to any chance of leading US Xbox!!
Everything PS4 is selling very good or decent, cards, games, acessories, etc...
I highly doubt that PS4 will be ever again passed by the Xbox, even in christmas.
Like i said before Sony played the market game right this time, PS4 value perception is just getting stronger.
All that end of year firesale give a little boost to Xbox, but the price they paying now is high, with the value perception of his product decresing together with sales.