I really really
doubt it
From IGN:
"The Nyko Wireless Sensor Bar claims a 25-foot range, and in our testing we concluded that it is indeed somewhat more powerful than the official Sensor Bar. Between 12 and 25-feet away from the Sensor Bar, we experienced comparatively less jittering with the Nyko model as opposed to the Nintendo issue. The difference wasn't extreme and twisting the Wiimote still produced quite a bit of jitter, yet we were able to conclude that the Nyko Wireless Sensor Bar gave us slightly better tracking ability at the 25-foot range."
25 feet my a$$. current sensor bar are useless at more than 20 feet. At 20 feet cursor movement isn't great either