It would appear that Norwegian's permit has gone through with Transport Canada, July 23rd being their expected fly in date for Canada. No talk on where they would be flying out of, but my assumption would be Pearson or Trudeau.
https://otc-cta.gc.ca/eng/ruling/2018-a-36
http://www.travelweek.ca/news/norwegian-air-could-be-in-canada-as-early-as-july-23/