And it is apparently called "Wii Remote Plus".
The box art for upcoming Wii title FlingSmash seems to be bundled with a new Wii Remote. The box notes, "Bonus Wii Remote Plus Inside!"
The game is compatible with Wii MotionPlus, the motion add-on peripheral for the Wii Remote. The Wii MotionPlus was released in 2009 and offers more precise motion control.
If this box art is correct, then Nintendo is releasing a Wii Remote that already features an on-board integrated Wii MotionPlus. The game and the remote are priced at $US49.99.
FlingSmash was originally supposed to be out a few months ago but has been pushed to November. A new remote could explain the delay.
Kotaku is contacting Nintendo and will update if the company comments.