Hey, this isn't necessarily for 2012, but I was interested in how possible this would be for a panel and how many folks would attend.
The dance in question is called yosakoi. It's a mix of traditional Japanese dances and modern pop dances. Teams will perform at festival all around Japan with the larger teams consisting of over 100 members.
Here's a video of yosakoi that inspired me to begin. Please watch it all the way through; it gets more awesome as it progresses.
http://www.youtube.com/watch?v=OeeigpEXBm4
At the panel, I would teach a simpler dance called Soran Bushi and make a presentation about yosakoi in general.