The real problem however is that if this Nintendo is anything like past ones. In the past, they are always the hardest (most expensive) to port to (though Sony really did some silly stuff last gen with their cell architecture). Nintendo always used proprietary architecture so tuning games for their hardware was not always easy. Unless DOS was written using some sort of cross platform engine that can auto-optimize and support Nintendo (I am not aware of any), then its going to be somewhat costly and time consuming. It would be much easier to port to XBox or PS since they are both x86-64. The Nintendo is basically a cell phone thats specialized for gaming (its cheaper than most cell phones). This is not a bad thing, nor does it make it weak, but its very different.

I guess it comes down to just how many Nintendo users would be interested in a western RPG. 3rd party games struggled with Nintendo in the past.