I was going to downgrade and re-upgrade my BP to get another full year. But I just spoke with a manager who said all the accounts opened in that time-frame (10/1/16-5/31/17) have been grandfathered in for one year - until 5/31/18 and it has nothing to with account opening date. He read to me the exact working of note on my account re the grandfathering and the note does not qualify the year as being "from card opening date". The manager thought it was clear the year meant from now, from when the "grandfathering" was done, which is May '17.