Not trying to stir up anything here, but I just read the latest Geoff Tate news on Blabbermouth, and there were two YouTube vids accompanying the article, which show that, if nothing else, the guy can still sing! The rest of the band is replaceable, to be diplomatic, but at his age, he's doing a fine job of it, in my humblest of the humble opinion :-).
G. Tate in Clearwater