there is no chance the deal is finalized before Tuesday, given the holiday. When it's done in principal, the announcement/season ticket drive will happen in Winnipeg. When that is done, the BoG will vote. That's how these things work, generally... the season ticket drive might last a whole week or even two just to take things up until the 21st if the NHL is so inclined to vote that day.
80% of a deal like this means everything has really been dealt with. Now it's all paperwork... heaps and stacks of it. Brunt's sources were politicians in Mantioba, I imagine that once the major hurdles were cleared those politicians were told to be ready for the team's arrival and they proceeded to leak it to Brunt.