How long will he live?
Well, it's best not to focus on questions like that, to be honest. You may as well ask 'how long is a piece of string?'
Sorry, not trying to be rude or anything.
But if it's any help to how you think/feel about it, my uncle lived for over 17 years with lymphatic leukaemia, which eventually progressed into his blood/bone marrow.
With the levels of care and technology in treatment today, there's every chance that the prognosis could be favourable.
The support of friends and family, as well as the patients own attitude are hugely important; my uncle never let it get him down, even though sometimes he was in terrible pain (especially in his last couple of months).
It's a difficult thing to come to terms with; for one diagnosed with such and for those who are close family. Just don't ever give up.
I know it's not the same situation, but I was present when my uncle finally succumbed to his disease; as were his wife, his son (my cousin), his sister (my mother), his grandson, his step daughter and her four children, his stepson and his wife and three children, plus many of the nursing staff who had go to know him over the years.
I guess what I'm trying to say is even when (if) the worst happens, all the people who mattered most were with him and though he was having a lot of morphine based drugs for the pain, he
knew we were all there.
Hehe that my cousin and I were chatting and arguing (banter) as we always have was somehow comforting to my uncle - he never liked a fuss and never wanted everyone creeping about like mice around him
Was a bit of a strange day in the end, but I'm glad I was able to be there. As far as family are concerned, that's all any of us can really ask.