Since there is a plan on rebuilding Dundas West station and loop, it should be done at the same time as the k/q/q/r intersection is being done. More so, a development should be built over it as part of the redevelopment of the property on the south side.
I agree that would be ideal, but isn't a Dundas West station and loop reconstruction many years/decades away? Was there ever anything beyond that Metrolinx (?) concept done? K/Q/Q/R is already scheduled for next year, so I see zero chance that they would be done together.