Reasons it will not.
Wiis technology = inferior everything compared to the competition.
Far inferior graphics.
Much Smaller environments.
Alot less characters on screen.
Inferior Ai/physics.
Alot less animation.
WAy inferior online.
As developers get better on the PS3 and 360, wii games will look worse ad worse. Even nintendo can barely make their wii games look much better then the Gamecube ones. Theres no magic wiimote to wave and make them better then the wii hardware will allow.
Most devs have big ideas for gaming this gen, those ideas cant be done on the wii. Most developers don't even know what to do with the wii yet, all they are doing is craping out mediocre games.
1st party games have been lacking, most are this mini game nongame casusl stuff, nintendo is pissing of alot of hardcore/core gamers and by what they showed at E3 they seriously don't care anymore. They got what 3 legit games coming this year Metroid/Galaxy/SSBB now compare that to what MS or Sony will have and Nintendo get killed on the software side of things.
3rd party are still not backing the wii, none are taking their big franchises to the wii. They are still sticking with the PS3 360 and PC.
PS2s software lineup all out dominated the competition. Wiis software does not.
Maybe it can hit PS sales numbers, maybe if the market grows enough this gen.