Mario 3D Land did about 780k FW in USA+Europe+Japan.
As long as 3D World does 50k or better FW in Europe then it will be at least 1/2 of 3D Land FW and considering the fact that 3D Land is on track to be the best selling 3D Mario, id say 3D World is doing alright granted it has good legs.
Personally I think its lifetime sales will be somewhere above Sunshine/Galaxy 2 but below Galaxy/Mario 64 so 8.5m or so.
When the herd loses its way, the shepard must kill the bull that leads them astray.







