The reason that you've noticed so many things ending on 9/27 is because Disney's fiscal year runs October to September.oct 23 is not likely (but still possible i suppose)... it'd probably be on a sunday.
things tend to close on saturdays and open on sundays.
for example, four for a dollar ends 9/20
a whole bunch of stuff ends 9/27
both Saturdays (and I assure you, that part isn't a coincidence).
then again, a soft opening is always possible.