But when would this happen? 2 hours, 30 minutes or 5 minutes before the start of your return window or 2 hours, 30 minutes or 5 minutes before the end of your time window. And if it is at the end of your time window would it not be too late to add that FP back into the system if they can only handle so many per hour?
I also wonder what will happen if you don't show up. Will it be given back to you or do it you lose it for that day. If someone with an AP can make 3 or 4 for every day without anything happening if they don't show up, there may be many that would do so on the chance they may be able to go. Or our family that has a 10 day NE. We only plan on going to the parks for 3 days this year and will be staying off-site. But with my ticket I could tie up FP+'s for 10 days so I would have more options when I got to Disney. With the old system, I could only tie up and/or use FP's on days I actually entered the park making every morning a level playing field for all that wish to visit that park for that day.