Any chance of the second tower increasing in height with the height race at the One and Pinnacle One?
Unlikely. The overall design by Gehry is a condition of the approval here, so it would open a real can of worms. This is also a more complex structural build w/the cantilevers.
I'm sure there's some wiggle room, but I doubt there's enough to be bothered revisiting the thing again. But I could be wrong.