That sucks. RIP, Mick - a one-of-a-kind guitarist.
Ian Hunter is still around - at 86! I've seen him many times over the past 2 decades, often at City Winery, where he played with the Rant Band.
I was recently talking with James Mastro, lead guitar player for the Rant Band, owner of 503 Social Club in Hoboken, etc. etc. and asked him about Ian - evidently not in the greatest of health, but hanging in there.