Yes, it did change back to 180 days. Not sure when it changed, sometime late last year. When I booked for my September trip 2009, it was 90 days. So, had to be sometime after the summer.
Keep looking at the online reservations, times and restaurants open up all the time because people cancel, change reservations, etc. I'm sure you will get the places you want, just be flexible with your times.
Wishing you good luck, lots of pixie dust and a magical vacation!!