I also think it would be great... Calhoun's program, what with his shady recruiting tactics and all, won't be down for very long.
I doubt he would publicly mention it if wasn't in the works and pretty much a done deal. I wasn't under the impression K was very fond of Calhoun; I know I've always hated him after he was less than gracious after beating Duke in 1999.
Either way, we'd get some great games out of it if it goes on for more than a few years.