CentreCourt Developments and Lifetime Developments are pairing up for this project, like they did with Karma. 54s although I wonder if they'll go higher?
www.CanadaTowerCondos.com was literally registered 5 days ago, but may be a mirror site by a realtor I follow.
Also recently
www.OneYonge.com was registered but it doesn't look like it's associated with a developer...or does anyone have any info otherwise?