This is what you get when one hand doesn't know what the other one is doing. Plan was to have track in place for the closure, but someone miss the waterline work that has delay the trackwork.
Again, who is coordinating all the work in the city as they keep screwing things up nicely and should be shown the door. Then you have infrastructure failures as the work has been push way down the road due to cost that in turn delay plan work.
Time to move to 7/24 construction timeframe for these project regardless it hurts the poor car folks our keep some from sleeping.
TTC wouldn't be the first system to shut part of a line down for a week or 2 working 7/24 to get the work done faster and sooner than taking up to a year of closures.