He just might, and leave CBS as well:

But he added something that was surprising, that I’ve not heard elsewhere — he may leave CBS, and if he does, may start blogging. I offered my help and advice if he goes that route, he said he’d like that.

It must have been stinging for Rather to see the once mighty news network of Murrow bring "perky" Katie Couric in to do their evening news, an action which would have been unthinkable just a few years ago by news executives that really did believe that their flagship evening news program needed to possess gravitas.

Whether you agree with him or not, Dan Rather would certainly be a fascinating addition to the blogosphere, one that I suspect a very large number of people would make part of their regular blog reading.