Considering the sales, I see this as a possibility, at least individually. I'm expecting two million tops from this version alone, which is enough to topple both HD versions. Combined with other factors mentioned by other people and we can have a launch blockbuster occurring right in our faces.
And remember, this is suppose to be at least 80% of what can be done on the 3DS (See this article at http://ds.ign.com/articles/114/1146225p1.html here for more information). So no surprise the game is getting so much hype.
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