Oddly enough I've been to MK for the last two weekends, and on Christmas Eve, and have not seen FP+ near the Town Square. This may be because of the Christmas tree? But my friends and I sat right in the area that the FP+ section was for parades during the week of Thanksgiving. I think they were testing out the area for the hub construction? I think they are actually moving the FP+ area for the parade after the Christmas season is over.