Only the planning department can answer that for sure, but for reference, here is a screen cap from the shadow study for 80 Bloor, right next door to the west, for March/September 21:So how tall will the final revision actually be? 299 meters?
That shadow study is based on a height of a height of 266.5m to the top of the mechanical penthouse for that proposal. This proposal is roughly 20% taller, so... you do the (visual) math. There are no doubt going to be significant shadow impacts at the current height.