Did the 1500 hour rule expire?
The 1500 hour rule is still in effect.

The rule wasn't set to expire on the 30th of September; technically the entire FAA was going to expire. Congress votes on the authorization for the FAA to regulate air transportation; that authorization was set to expire 30 September, 2015.

The House voted to authorize funding on 28 September while the Senate passed a 6-month extension on 29 September.

Expect to see similar discussions in 6 months.