http://www.vhtrading.com/topic/david-lee-roth-is-letting-his-art-mostly-do-the-talking

Q: You last toured with Van Halen in 2015. Do you think it’ll ever happen again?

A: I don’t know that Eddie [Van Halen] is ever really going to rally for the rigors of the road again. [The guitarist first announced he had cancer in 2001, and it has recurred since.] I don’t even want to say I’ve waited — I’ve supported for five years. Because what I do is physical as well as musical and spiritual — you can’t take five years off from the ring. But I did. And I do not regret a second of it. He’s a band mate. We had a colleague down. And he’s down now for enough time that I don’t know that he’s going to be coming back out on the road. You want to hear the classics? You’re talking to him.