Very sorry to hear...
Hopefully when he goes, it won't be prolonged causing him lots of suffering...
The smoking hasn't helped his cause, but it's probably too late to stop now, the damage is already done... If he's that bad, he's going to go whether he quits smoking or not... It's his life and his choice, let him choose what he wants to do... If he wants to keep smoking let him, quitting smoking now most likely will not buy him much more time....
Are they talking about putting him in Hospice???