Congratulations! If you go to the theme parks area of this website there is a link to theme park hours. If you put in the dates of your stay they will give you estimated hours of operation based on last year. In October the MK typically closes at 6 or 7 most days of the week, with one or two days closing at 9. Those would be the nights that Wishes and Spectro would show. If the park is open until 9, I believe that Spectro would be at 8 and Wishes at 9. I was hoping that October hours would be out soon, but it looks like they're not releasing hours but two months in advance, which really stinks.
Have a great time.