People need to pay attention to post dates. As soon as I saw the original post, I immediately checked the date because two weeks away is ridiculous. I was comforted when I saw that this is over two months old.

Anyways, I'm predicting Nintendo's Big Three happening in May, late August/early September, and November.

I'm going to predict the order to be Metroid, Zelda, and Mario.

May, definitely

According to VGReleases, the release date is now rumored to be Q4 2010.
So...

how did you check the post date? I just assumed it was old cuz the date is less than two weeks away...

It says it on the left side, at the bottom.

Oh, Nintendo is smart release close to the holidays & sure to dominate in sales...like NSMB...

Remember alot of Wii games don't get talked about until close to a 3 month period...

This is the way I look at it:

Because Super Mario Galaxy 2 is such a big game, it will sell the most during the holidays like you said above. I really doubt that Metroid: Other M will be a holiday game because it's not nearly as big as Mario games in which it might end up being a Q3 2010 release. I know it is in Japan, anyway. I don't think the new Zelda game will even be released this year because 1) It's not guaranteed to be released in 2010, and 2) They don't even have an actual name for it yet. So my guess is that Zelda will get bumped to Holiday 2011. And yeah, because New Super Mario Bros. Wii sold a lot during the holidays, I don't think it will be any different for Super Mario Galaxy 2.

Other M: August 2010

Galaxy 2: November 2010

Zelda Wii: November 2011

Why, would you look at that...

Well...knowing Nintendo, they wouldn't want to release 2 HUGE titles like that within the same year (especially not in or near the same quarter). It's like the situation with New Super Mario Bros. Wii and Super Mario Galaxy 2. And like I said, those kinds of games would sell the most during the holidays.

Because of how bad the economy is, people want to make as much money as they can, including Nintendo.