I don't think that the parade will be filmed during 11/2 - 11/5 this year. That seems too early. But since the holiday season begins on Monday, 11/14, this year, there has been speculation that the parade will be filmed over the weekend leading up to it, maybe on 11/10, 11/11 or 11/12. I also think that IASW Holiday might open prior to 11/14 as well.
To my knowledge, the Winter Castle does not light up in full icicle lights before the official start of the season, especially not that early in November. The Castle lights up as usual, as it does every night, but not in the icicles. The 'snow' appears on the Castle before Halloween even rolls around because that's part of the decoration process that must begin early, but the icicle lighting/glowing intermittently through the night happens when the holiday season begins. It may happen a couple of days prior to 11/14 this year - just as I suspect IASW Holiday will do - but I doubt the Castle will be glowing between 11/2 and 11/5.
Haunted Mansion Holiday will already be up and running, of course. The Storybook Land ride may or may not be closed due to receiving its teeny tiny Christmas decorations.
The Round-Up will close to have its Halloween decor taken down and its holiday decor put up.
Pirates will be closed for refurb.
There's a reason why this post-Halloween and pre-Christmas season is slower, crowd-wise - because most of the holiday offerings have not begun yet! It's pretty much off-peak. So if it's primarily lower crowds you want, you will get them!