I would expect that the next step would be the shoring, which could start shortly, all around the site except for the TD Bank building. By the time the rest of the shoring is done, there may not be too much of a delay waiting for the branch to be vacated and its demolition to take place, at which point the rest of the shoring could be completed. Given the size of the site, it may even be possible to start excavation in the northern and eastern areas, while waiting for the branch to close.