Wow well done Sega! 100k first week for Others seems possible. Now using VGChartz wonderful database we can establish that:
- House of the Dead: 2 & 3 Return sold 21k in Others and 14k in America (rounded up) first week.
- American sales grew more than Others and in the end was 20k behind Others.
Based on this trend I'd say that American sales will be larger than a 1.4:2.1 ratio as more people will look at this as a sequel to 2 & 3.
Therefore I expect America to sell around 0.8 times the amount of Others so that would end up being around 80k.
Japan's week 1 was just a little bit lower than Americas last time however it had no legs really. We can assume then that the sales will be around the same as they were for 2 & 3 (ratio wise, otherwise pen then in for 13k) which means Japanese sales will be around 60k.
That would put the sales at either:
HotD:OK ~200k (Bad Japan)
HotD:OK ~240k (Good Japan)