I was there over Labor Day weekend. Upon waiting a very long time after FITS on Sunday evening for a launch to the Poly, we finally got aboard. My husband and I were chatting with the pilot who said that Disney underestimated how busy Labor Day weekend was and that is why they were understaffed and guests had to wait so long. He said the park count for MK was around 55 thousand on Saturday. My husband and I went to MGM on Sunday morning and by noon, Sunset Boulevard was PACKED and we left. We also went to MGM on Monday and noticed the crowds were WAY down from just the day before. So, to answer your question, I don't think crowds will be that bad, but I do think they'll be a bit up from last year due to the FTP.