This photo just creeps me out to think this would be what he might look like today at 70. Sucks getting old for us who have lived longer than he did. He'll always be young forever.
Also the ETD cast as they have faired over the years. Bob Wall looks even worst as I saw him at the Con. The new Jim Kelly was was from this last Con too.
After looking at them, This image of Bruce aged is TOO much, cool BUT too MUCH based on his former cast mates have aged better. So I think Bruce would have too as he was in top condition then and would have practiced his fitness well into his senior years, so he would be in better shape than the other 3 combined. For 60-70 years his face probably wouldn't look so cracked maybe at 80-85. This picture is of a man who has lived a very hard life of physical combat. That would apply to his film persona.