Hi, philofra. Not yet, but good question. There were some really good posts a while back with respect to the subway tunnels to the east and the possible expansion of the platforms. Obviously, the connection would have to be west of the tunnels (which don't run under this site, anyway, but the connection can't be on a diagonal running northwest because of them). Where would you see it connecting into the HBC? Perhaps somewhere west of the escalator up to the Bay but east of the stairs down from street level?