He will certainly be missed. I had a wonderful two years getting to know him while I was at the IfA, chatting with him every couple weeks or so. He was always in his office when I stopped by, even at the age of 88 (!), and his computer screen always had an IRAF window open with some spectrum or another. He gave me excellent job advice that I still pass on to this day.
Whenever I tried to compliment him, he would tell me how much more I knew than him, and how much he had to learn from me. He was genuinely humble and eager to learn, despite being one of the true greats in our field. I want to be like George when I grow up.
It was an honor and privilege to get to know him. George, we'll miss you!