heres my theory:Mike Kayatta said:snip
nintendo isnt about to release a new handheld after the damage the 3ds has done to there name. However a multi-SKU plan is not out of the question. They can have the 3ds they have now as well as a more affordable SKU with two circle pads but no 3d. I would imagine that taking out the 3d portion of the screen and the components that make it possible would cut off quite a few dollars from production costs.
On the subject of a circle pad add on for the original 3ds. I dont know alot about wireless communications or the overall size of a circle pad but it seems like it might be possible to make one that has a sticky back to it that you just slap on your 3ds and it communicates with the system via wifi. the immediate concern would be the already bad battery life. I however have full faith in nintendo to think outside the box.