Hmm, for one thing he removed Unicode support from his standards, citing problems? At any rate, I wouldn't trust this man to define the future of IRC on his own.
I'm sure any sufficiently large people who know how to develop IRC clients would be able to code an extension to IRC and document it though, and support for things like web cams and whiteboards could already be implemented through things like CTCP/DCC requests. In fact, one might argue that mIRC once extended the protocol with "mIRC colors".
In the end, though, it's just a matter of doing it and seeing if it catches on.
