Fantasmic is usually run on Fridays and Saturdays in early December, as well as the fireworks.
The Pirates closure is still rumor at this point. The original closure was supposed to run from Sept to early Dec, but there are even more rumors now that it will be pushed out until after Jan 1. My guess would be that if the crowds stay at the levels they have been, then the closure won't happen until next year.
I haven't heard anything about the Christmas parade. I don't know if they will run it this year, or just stick with the new one for the 50th. It usually starts running in mid-November, without Santa, who makes an appearance after Thanksgiving.