The rendering I posted minus the Yonge street components?
(ie. The Yonge Street Tower component?) I don't think aA will deviate too far from the original proposal they made given the obvious amount of effort which went into it.
I have to assume the Cumberland terrace tower will be a lot Taller now, if they get rid of the Yonge Tower. They may also have issues with shadowing based on the enhanced footprint shown in the Humphrey designed tower. That gives us an idea of a larger tower as well as a taller tower as well.
Here is the rendering for the original aA proposal for the site, as you can see the footprint of the Cumberland Tower is narrow, when compared to the Humphrey design, so I will expect it to get beefed up, if the Yonge Phase is to go ahead, but until the first phase has been completed. We could be taking about a 20 to 30 year timeline here.