Dream_While_Awake on 29 December 2013
I don't think it will.
Wii U will outsell the GC but 3D World still won't pass Sunshine. I think it'll be overlooked because:
1) The fan base Wii U eventually attracts won't care for 3D World's style.
2) A true 3D Mario will be released someday splitting the sales in 3rds. (2D, 2.5 D and 3D Mario)
3) Mario in general has seen many more entries as of late causing a slight market saturation. (3D Land also exists)
