1 year out sounds reasonable to declare a limit for a specific test. I don't know if listing it is, I don't see many 1 year forecasted tests on EE. Do you? So maybe that's a change a club and EE need to work out. Certainly you won't be listing judges that far out in most cases or premium details.
BUT...just because I declare a limited entry doesn't mean another club will that's also within 200 miles of the club seeking a date change to coincide with mine.