In the before times 2-3 weeks out was when we started getting phone calls with upgrade offers, which I assumed was when they were doing the final cabin shuffles, so It tracks that they would be locking bookings for a bit. I expect that you'll see things open back up at a week or two from sailing with last-minute inside cabin deals on whatever they're left with after upgrades, sidegrades, and upgrades that some may consider to be downgrades. 😕