From the CBC:
Corrie is expected to be moved on Sunday morning to allow for coverage of the PM’s anticipated official announcement on Sunday morning of a fall election.
Quebec/Ontario only: Coronation Street will be seen at 9:30 am on Sunday, September 7.
Manitoba only: Coronation Street will be seen at 8:30 am on Sunday, September 7
Maritimes and Newfoundland only: Coronation Street will resume at 10:30 am, 11:00 am in Newfoundland
BC: Corrie is the same as usual – 7:30 a.m. to 10 a.m.