with the plans to branch the blue line off down Grant Ave eventually, I wonder if it would be a good time to re-configure the intersection then. here's an idea I have:
yellow and orange lanes are the new N/S Pembina lanes through the intersection, shifted north to run along side each other on McMillan.
South of those lanes would be an AT way and the new blue lane, with a station at the intersection of Osborne (blue shade area) three blocks further north from the current one.
green line is new Corydon Ave that connects only to Osborne St north.
Osborne St N and S would both terminate at McMillan intersection (which would be the main controlled intersection), forcing drivers to go left or right onto Pembina.
purple area is reclaimed area for re-development.