Right. What you would need to do is somehow rewrite the wiimotes firmware. Then have the wiimote initiate the communication every so often.

I did something similar with my firefighting robot . My PC commands the wiimote to start a communication to the expansion port. So all communication has to start with the wiimote because it is the master. So far the only known way to control the wiimote, is to send blue tooth commands to the wiimote.