The next Zelda game is still going to be MotionPlus compatible, and there are even more MotionPlus titles currently being developed
An interview with Nintendo of America translator Bill Trinen has more-or-less confirmed that the next Zelda game will indeed feature MotionPlus support. In the interview, Trinen commented "That being said, Mr. Miyamoto did mention at E3 2009 that the next Zelda game is going to be Wii MotionPlus-compatible."
Trinen also neglected to speak of any real information regarding the games Span Smasher (Another MotionPlus game), Mother 3 and Another Code. Unfortunate.
Source: Nintendo World Report
