Your itinerary so far sounds great! I love that you have scheduled down time. It is always the one thing we don't get enough of on our Disney trips
Forgive me if I missed this, but are you keeping the trip a surprise until the departure day? Do the kids currently have no idea you are going?! How awesome!

I have always wanted to do a fall trip but never seem to make it through the winter without a trip

Maybe I just need to figure out a way to make two trips per year possible!
Oh, and our most recent trip was a bit unexpected. We weren't planning to go back to the world this year (we had an AMAZING trip in Feb 2013) but some close friends decided to bite the bullet and make their first ever trip to WDW and asked if we would come along. How could we say no??

It ended up being a fun trip, but a bit crazy for me, as I was doing all the planning for our two families of 5. Also, I was sooo determined to help the newbies love Disney that I think I lost sight of it being our family vacation as well. Our dd (2) also ended up sick while we were there (doesn't it always seem like 1 kid is off?!) so we were forced to have some down time and lost one of our MK days. This made our one day at MK pretty stressful. Meeting Anna and Elsa was definitely a highlight of our trip along with lunch at Tusker House-first time there. Awesome character interaction and delicious food! Will def be back to that one! Next on our Disney agenda is a Cruise. Would love to hear more about yours. Thinking winter of 2016. Need some time to save some $$$$.
Hope you had a nice Father's day. Looking forward to hearing more as the planning continues.