60k US, 30k europe, 10k elsewhere. Why?
BenV says XB1 is tracking ahead of PS4 so far this month, and PS4 seems pretty stable at 50k a week average (Past two NPD months suggest this). So 60k seems about right.
US seems to be about 60% off WW userbase for XB1. So 100k WW~ or there abouts.