I was at Au Cinquieme last night. Apparently this, or next (they were not certain at that moment), Saturday will be their last day before the close to relocate elsewhere, still in the Plateau area. They are still looking for a spot.
Just putting it out there in case someone wants to go before they close.
Au Cinquieme Peche
4475 St-Denis, Montreal, QC H2J 2K8, CA