There are also so many better, not necessarily significantly more costly, ways to greatly improve the Downtown / Subway / MCC connection, starting with a 427 transitway extension and going all the up to Transitway rail conversions and 403/401 corridors that don't shut the transitway down.
Really I am probably most fond of committing to the OL extension closing the gap in the loop concept and running to Renforth ASAP; seems like Sheppard + OL to Renforth and Unionville + Cambridge LRT + Milton 2WAD would be a pretty compelling election goody package.