They are checking bands and clearing the parks. However, it is extremely busy. Most parties, even in September, having been selling out. They will be even more the case in October. They don't cap the numbers nearly as low as they used to so crowds are huge at the parties. Just know up front that you'll need to decide if there's certain characters you want to meet (Jack and Sally generally have a 60-90 min wait for instance) or if you want to trick or treat. I wouldn't worry about rides. Too much else to do and not enough time to do it all.