Q1 = Jan - Mar
Launch Window = Nov - March
If they dated the game as Q1 people would at least get a confirmation of it being a 2013 title but right now nobody knows for sure.
What is making it difficult is that Nintendo no longer announces games that are far away from being release, except in rare exceptions. We saw the same thing with many 3DS games. I do remember that Nintendo starting doing this cut down on the hype backlash.
Most likely, we will have a Nintendo Direct after Christmas, most likely the beginning of January, which we will get more detail about future release beyond March.