If GG chooses to scrap the current building design, which I think they will (and hope)... I hope they plan on putting up a temporary park of some sort around a possible sales centre for their new project.
It will be 2-3 years before anything is built on this site, building plans, approvals, sales, etc.
I have high expectations for anything that goes on this corner from GG and I do not think anyone will be disappointed, knowing GG's track history. I admire their two other buildings in the area, 18 Yorkville and X.