EDIT: Title's wrong. It should be "By the END of 2011" Please don't point it out, as I have already noticed... >_>

This is an interesting question filled with many unknown factors, considering that Wii sales have beennear-unpredictable.

Sales: from 2006-2009 respectively:

And this year so far:

The Wii's sales have been peculiar, as they have bounced around quite a bit, especially this year. At the end of the year, the Wii should have about 82-83 million, requiring 17million more, which matches this year's numbers. Should it be able to do so? Does Nintendo have the proper aces up their sleeves? Or have they taken too hard of a blow from Kinect?

Nintendo is the Wii's biggest problem.  They need, foremost, software that spurs momentum.  Despite having several evergreen titles, they will eventually have a saturation point.

Shipments will likely reach 100M but sell-through may finish in the 97-98M range.  With the software, suprises and price cut to help.

I think 83 million is more realistic but 84 isn't completely outside the realm of possibility (provided Nintendo ships that much).  A price cut would only be followed by a temporary spike.  Wii needs software from both first party and third party sources to maintain steady sales.

They should definitely have reached that shipment point by the end of next year, not sure if they'll do it in sell through. They need something big to push sales, another Wii series title in the summer wouldn't go amiss, especially if it provides a long term hardware boost. Honestly I think the problem for now is Nintendo don't have a steady stream of big software that will keep sales momentum going. A price cut won't hurt, but neither will it push Wii sales higher for a prolonged period.

If they have a $50 (and its equivalent in EU/JP) price cut, push Last Story as a major worldwide release, have a Wii series title in summer or early autumn at the latest, push Zelda as a massive Christmas release, do a couple of bundles and have some other strong software offerings throughout the year they could see sales stay at a similar level to this year and push passed the 100million mark in 2011. As it is, we don't know what Nintendo is going to do at this point. I assume both Zelda and Last Story will be out at some point, but price cuts, other first party and third party software, bundles etc are all up in the air. I still think they have plenty cards to play, but the longer they wait without doing anything in the face of declining momentum, the less effective their actions will be.

They could announce more evergreen titles at E3, maybe another Wii sports, Miyamoto already hinted about wii music 2 so we could see that dropping soon.  If it does hit 100M end of next year then Q1 2012 it will certinaly do it.

At the dude with Kim Possible Avatar said. Although it will end at 84.5 millions. Then only 15.5 millions to go. And that shouldn't be hard with the upcoming New Super Mario Bros Wii 2, Zelda, Wii Vitality Sensor and a shitload of Wii Motion plus games (people wonder why the new Wii Remote was made and why it is being bundled with every Wii now).

Then, I think the answer to this thread is no.  The Wii will not selling 100 million by the end of 2011.  In fact, it will struggle to get to 95 million.

Wii to be about 83M end of year, it will sell at least 13M-14M in 2011, so about 96M-97M end of next year, struggling to get to 100M, very so but 95M it should crawl past that mark.

Not impossible, they just need to make sure 2011 has more hardware movers than 2010 did, by a significant margin, but that looks to be the case: The Last Story and Dragon Quest X should do some damage in Japan, Nintendo could push a love letter to JRPG fans in Last Story-plus-Xenoblade-plus-Tales of Graces in the West for a little help, then finally pitch the Vitality Sensor out there and add that on Zelda.

A winning formula that could get them through the last lap