We went for roughly the same time frame this year. We normally go in mid-October. We found it to be busier than then, but if we planned well we could still get on rides with a minimum wait. I was amazed at how crowded AK was on the day we went (Saturday, it EMH morning, bad move) Never seen it that busy at AK. We also were there for the first Star Wars weekend, so naturally MGM was busier for that weekend (it was very busy around the Star Tours area, mobbed in fact) but it wasn't so bad the rest of the park. Epcot was very busy at Soarin (it had just opened) and Test Track was not one you could do stand by with, unless you were happy with a 60 minute wait. The rest of the park was great, we got to the World Showcase as it opened and had a wonderfully tourist free roam. Got some great pictures. Did that too at MK one morning as well.
Mornings were fine, walk ons pretty much all over. Did really crowd up by afternoon. So get there early you'll have no problems. Again we have been spoilt by October time, when the weather is a bit cooler and the crowds less, or though we did notice last October a bit of an increase in crowds. The weather was sticky..very hot. Lots of thunderstorms forecast, but none materialized, we could have done with one to clear the air. However it was manageable. I have tried to be honest, but a lot could be chalked down to 'in my opinion' I bet compared to July/August the weather is great and the crowds small!!