Originally Posted by FriendlySkies

It's never a good idea to rely on a seatmap. With the current upgrade system, seats are not assigned when a SWU or mileage upgrade clears. That could explain why there are several seats open.

Don't forget, there is always the possibility of people canceling their tickets, or moving into F, which is 10/12.

As a 1K on a Y fare, I'd say your chances are pretty good. You'll just have to wait a bit longer to see what the waitlist is like..

Good luck