I believe the current plan is for East Harbour Station to be connected to the proposed Broadview Streetcar. If the TTC decides to split the 501 like they did the 504 it honestly should be the eastern terminus of the western branch (let's call it the 501A), instead of the current proposal to terminate it at a new loop new Broadview & Queen. Having passed through that intersection a bunch many years ago it was an awful intersection with the 3 routes that currently run through it. The current proposal sounds like a traffic nightmare since with a split 501, that intersection would have 5 separate streetcar lines passing through it (the 501B, 503, 504, 508, and the Broadview) so terminating a sixth route there is insane to me (also there will literally be a subway and GO station just down the street so why wouldn't you just go there?)