Reported on the EDI twitter that the new East road planning is going ahead with it expected to be completed by early 2021.
Also WestJet have 3.5 B767 available for flying to Europe, and the UK was rumoured to be getting at least 1 of the 767 for a new flight, my guess would be an additional YYZ-LGW flight, YYZ-MAN or YYZ-EDI as was widely rumoured a while ago, now would be the best time for another Toronto flight to compete with Air Canada Rouge IMHO.