I think he'd barely started it by June 1985. If I'm not mistaken his first daughter Kristi was born around the same time so he would have been preoccupied with fatherhood. His album went on hold for around a year until mid 1986 while A&M Studios went through a major overhaul of their premises. It's interesting that in this article he said he knew Karen was ill but didn't think she'd pass away. In another (TV) interview he was asked if he thought it was serious enough that she could pass away and he replied "oh sure".