Looks like this headache is going to be fixed...finally
http://www.mtq.gouv.qc.ca/portal/page/portal/grands_projets/trouver_grand_projet/autoroute_20_parachevement_dans_vaudreuil_soulanges
^ That page has been on the internet for several years now. If you translate the page, you will notice there is no construction time-frame listed.
Tim Horton's donuts are delicious, but second to their coffee.