Reading that article, I don't get the impression he is switching his tune. I think he's setting up for a ratings blitz by getting a lot of gun-Rights people to talk to him.
This sentence: "And they're going to have their advocates who are going to take it beyond common sense and come up with statements that the only thing that can protect a good guy with a gun or a bad guy with a gun, against a bad guy with a gun is a good guy with a gun." It sounds like he is rambling on at the mouth.
He then goes on to say "No, I don't adhere to that. If I did, I'd own firearms that would be concealed. If I really believed that in my heart, I would have, I'd be packing. And I'd have a permit that lets me pack. But I don't! . . ." which tells me he doesn't believe people can defend themselves.
At the most, I expect he'll be one of those "2nd Amendment is for hunting" people, like our sitting Tyrant. Bolt action rifles, pump shotguns, and similar neutered firearms.