I’ll have to come back later with a further analysis or potentially even a map, but here’s what I found today.
Revealed in the landowners tenants slideshow was a massive USEP scope increase on the east end:
This project now includes 5 additional platform entrances to the new platforms. 1 entrance will be built off the Bay East Teamway, the other 4 entrances will lead to tunnels under the rail corridor, with exits on the west and east side of Yonge Street.
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This is a massive reveal of information, and expands the station’s footprint significantly, Union station will now span from Lower Simcoe to Yonge Street