Kotaku have made it a point to track the number of online players on the Wii U version of Call of Duty: Black Ops 2 and this week they found 1069 players online (a slight increase). Naturally these numbers are low and can't compare to the numbers Black Ops 2 is doing on established consoles PS3 and Xbox 360.
The numbers are food for thought, and it will be interesting to see if they pick up as more players get their hands on Wii U units or if the Nintendo crowd is simply not that interested in the biggest gaming franchise around.