In this past year, we've had some passings from legends like Bill Justice, Corny Cole, Earl Kress, etc. Don Lusk continues to be alive and turns 98 today. I believe that he is still in good health, and an interview is hopefully still in plan, but we just have to wait and see.
Tony Benedict video posted by Yowp with footage of him. It's a very neat video, and I think you should go and take a look at those who worked at Hanna-Barbera back in the sixties.