It's a decent rumor, but I doubt it.
Firstly, he has a wm title shot. I doubt he loses it, and wwe wouldn't be stupid enough to have Vince strip him of it, because that would make him look bad.
The only other way to lose it would be to cash in early, which I also doubt. There's only one PPV, which is No Way out, and he already has a match. Therefore, he can only cash in on Raw, which would never happen. Espeially with Orton being a heel.
Thirdly, with Austin being inducted, I highly doubt he would wrestle a match with anyone, nevermind Orton. If it's anyone, it would be like Hogan or something.