I'll post this here since the building has sold enough to start work. I know it won't be official until shovels hit the ground in the spring though.
Source: urbantoronto.ca
Address 266 King St W, Toronto, Ontario, M5V 1H8
Category Residential (Condo), Commercial (Office, Retail), Institutional
Status Pre-Construction
Number of Buildings 2
Height 1,011 ft / 308.00 m, 862 ft / 262.80 m
Storeys 84, 73
Number of Units 1170, 864