I cancelled my ADR for later this month for that reason. I don't like seafood, but love prime rib. After I made my ADR, the menu changed. The kids had been begging to do CP for dinner so I switched. I was a little bummed since both DH and I wanted to try it, but there was really nothing else that caught me eye.
I did my ADRs at the 180 mark, and I noticed the menu change shortly after that.
No prime rib at lunch either. We ate there in May and saw the new menus. No one seems to have the new lunch menu posted yet. I was disappointed because the PR was very good here. The only beef is the NY strip. The deserts have changed too. The wave is still there, they now have a chocolate mousse that is very good. I had the shrimp pasta for dinner and it was very good. (They originally had a shrimp pasta that was yucky, then the next trip it changed and was much better). Their menu changes often, mostly because alot of their food is seasonal.