Rumored launch dates for the next gen iPhone don’t give any valuable info as they are rumored dates and only. Some of them have already managed to exhaust themselves. For example, in April we had a rumor saying the next-gen iPhone would be launched in June. It didn’t happen, and we were waiting for a new rumor. The latter wasn’t late, and that time the iPhone 5 was scheduled to be launched in October. We can’t say whether this is true or false but iMore comes with other info saying the sixth-gen iPhone will be available for pre-order on September 12.
The iPhone 5 is rumored to be unveiled on this date, thus the pre-orders will be available on the same date as its announcement. But Apple has’t had a similar practice, so we should take this info with a grain of salt.
iMore also says the new iPhone will hit international markets in the first week of October, on October 5.