I predicted 60k for Arms, so I'm surprised! According to Famitsu it did 120k, but on MC it's at 100k, so let's say it did 110k.
I don't think it will have great legs in Japan, but I'm sure it will do even better in US. First week (worldwide) should be 300k (130k US / 110k Japan / 60k EU + RoW) , which is pretty good for a new IP... and a fighter while a that. :o
Bet with Teeqoz for 2 weeks of avatar and sig control that Super Mario Odyssey would ship more than 7m on its first 2 months. The game shipped 9.07m, so I won