Nah if you look at recent history of Nintendo hardware they all have common points:
Big mind catching gimmick/innovation (touch screen in DS, motion in Wii, 3d in 3ds)
Barely adequate at time of release hardware
High profit margins
No way they resign from biggest marketing point just to make no 3d version which probably would be like 10-20$ cheaper.
PROUD MEMBER OF THE PSP RPG FAN CLUB