Interesting about the Wonder beds! We still had the old staterooms on the 2014 WBPC cruise, my last time on the Wonder. I remember that the room renovations were happening during early 2015, so the next WBPC had already the new rooms. Dream, Fantasy and refurbed Magic all got their furniture installed in Europe (either Meyer Werft or Cadiz dry dock), I am wondering if for the Wonder they went with a different manufacturer and something in the specifications went wrong resulting in beds that are one or two inches lower. It does not need much for the bed to not fit. I know that the Dream cabin furniture was built by a German furniture manufacturer (Hülsta, the press release about this is only in German:
http://www.meyerwerft.de/de/meyerwerft_de/medien/presseticker/pressemitteilung_detail_9920.jsp), so they could easily built the same type of furniture for the Magic and have it shipped to Cadiz. But having it shipped all the way to Miami where the Wonder was stationed when they refurbed the ship might have been a bit too far...
However, I would be surprised if they would really rip out rooms/furniture that is only 1.5 years old! Can't see that happening!
But it does seem that the Dream is kind of getting a "rolling dry dock" with regard to staterooms, there were so many people posting about their staterooms being moved due to refurbs going on. Those reports were similar to what happened before the Wonder room refurb. I don't expect there to be a lot of change to the rooms, but it will be interesting if there are going to be any reports as to what they did to the Dream rooms...