It wont greatly affect my touring plans. The only two things that I am curiously awaiting are:
1-Blizzard Beach schedule as it closes for yearly refurb sometime in late October. I am hoping that I can squeeze it in, but even if it is open, I am not sure that I can. I havent put much thought into yet as I dont want to stress about whether I can/cant go.
2-The important thing for me is ADR times. The schedule for the various parades and nighttime shows is based largely on the parks hours. For example, Wishes show time can vary up to 2 hours in October depending on what time the park is open until. That is a large window to schedule your ADR around if you want to see that show.
All that being said, I am not overly stressing about it...more of a curiousity to see if I may have to reschedule some ADRs.
I am sure that there may be other reasons for folks to think about it..but those are the two reasons for myself.