I just booked K and B fares for TUL-IAH outbound this Thursday and return on Friday. As a Gold I am already inside the 3 day upgrade window and there are multiple F seats showing open on each segment. I still see Medallion Upgrade Requested.

Question - Is it even possible that an upgrade could process within seconds or minutes of booking or do those process in batch on a nightly or periodic basis?

Question 2 - when I'm within the upgrade window is it possible to tell on which flights I would get the upgrade processed immediately?