Believe it or not, despite this going at a snail's pace, it is on schedule. Both the stage and the rink appear to be set to open by October and November respectively -- just as planned. If anything, blame the incredibly unambitious timeline for the pace.
It's also important to note that significant work is going on underneath. This isn't just a project about the new elements, it's a complete repair and reviltalization of critical infrastructure. If it's any consolation, NPS will never get this messy again during this project. The stage and skating rink work are the last remaining elements within the square's inner perimeter. Before the end of the year, it'll be completely cleared of construction materials. Work will then proceed to the outer perimeter and the walkways, all of which have always been underutilized (with the exception of the Queen St. forecourt).