Unfortunately it is hard to know what will be running off season. Almost always there will be something on Weekends, with less during the week. Generally if there is a parade at DL it will be daily. Fireworks may or may not happen, Fantasmic may or may not happen ( most years it is one or the other, and not always the same one from year to year so you can't really go by info from a previous year) Electric parade has been at DCA since it was moved there on weekends every off season except last year. However this past year had block party bash daily, so if that goes, there is a chance the electric parade will come back.
DL xmas stuff usually arrives the first weekend in November. With the fireworks usually starting up between the first weekend and thanksgiving.