So the proposed transit hub at Portage & Main is not as difficult as it sounds. If the transitways are positioned on the east side of Main and the north side of Portage, all of the transfers can be done right at the Richardson plaza, with no need to cross the intersection at all. So we can have an RT hub at Portage & Main without even opening the intersection to pedestrians. A picture is worth a thousand words (click to enlarge):
This is not meant as a fantasy of what I would like to see, so please don't chime in with your tunnels and elevated guideways.
I'm trying to realistically interpret what could actually be possible, within the parameters in the master plan.
Yes, the buses are driving on the left rather than the right -- this is how it's shown in the master plan, too (see image below). Running the buses the "wrong way" allows a single centre platform to serve both directions, which makes more efficient use of space and is also more convenient for transfers.