Well assuming MW3 is the next COD, then i'd expect it to be the last COD to have a sales range similar to MW2 and Black Ops, though critical reception will be not be up to par. Thus, the COD in 2012 will sell maybe like WaW range. BUT if Activision does decide to charge subscription for multiplayer(i dont think it will happen) then we will see a decline in sells much faster.
e=mc^2

Gaming on: PS4 Pro, Switch, SNES Mini, Wii U, PC (i5-7400, GTX 1060)







