One thing I haven't seen mentioned yet is that this tower will be quite a bit taller than 400 feet. The 400-foot height limit only applies to the roof line, and is
exclusive of mechanical penthouses and screening. Unfortunately, I can't find anything revealing the total height of the tower.
Just eyeballing it, the crown seems to be about 7 stories in height, which could add another 60-70 feet to the total height above 400. You can see in the latest redesign that the roofline stayed the same, but the total tower got taller: