The IRS will not send you your filing date. You just have to file your return when you qualify for the exclusion. If you qualify in September, and filed a form 4868 to extend your filing, you need to file another extension on or before 15 Aug and extend it to 15 Oct. If you filed form 2350 to extend the filing and extended your filing to 31 Jan 05, there is nothing to do until you qualify. At that point you can file your return.
Helen