Thanks for reverting, but actually https://www.openstreetmap.org/way/413446964/history at least needs to go one stage further back - locals here have said that it's "proposed", if that.  See https://kitchener.citynews.ca/local-news/new-highway-7-between-kitchener-and-guelph-seemingly-snubbed-again-by-province-5158523 , apparently.