Two that you may be aware of - Jaws and Dudley Do-Right are both closed for rehab at the moment. Neither have announced re-open dates. Jaws is particularly shrouded in mystery - the date December 16th has been mentioned by employees, as has "January 2006". Dudley may be up and running my early December, but its closure, too, could run into the New Year.
As far as other attractions go, it would just be speculation, as US do not announce their closures ahead of time ...