The 4.7 inch & 5.5 inch iPhone 6 Release Dates is said to be September 2014. Check iPhone 6 release date, specs, features.
Update as on April 5, 2015: Apple has officially launched iPhone 6 and 6 Plus and to date both these phones are available in all parts of the world.
As soon as the iPhone 5 was launched there were rumours of iPhone 6 but Apple has some other plans as iPhone 5C and 5S were announced. Now then iPhone 5C and 5S are not doing that great, Apple Inc is said to come out with iPhone 6 which might sport 4.7 inch display. Also the 5.5 inch iPhone 6 variant has been rumored. Rumors put iPhone 6 release date in summer or mostly during the end of this year. However considering the iPhone predecessor launches, it will lock down to September or October during an official event. Apple hasn’t said anything of an event later this year but we might hear a word about it during summer holidays.
Source from Nikkei says that Apple has already begun manufacturing the fingerprint scanners and LCD panels for next gen iPhone. Interestingly rumors point out that 2014 iPhone model will be with 4.7 inch display and preferably 5.5 inch Apple phone will be named as iPhablet.
Maybe the launch of iPhablet will be delayed and maynot be launching this year because of iWatch but certainly the 5.5 inch iPhone is on cart. And as September is still too far, we expect more back fence talks about upcoming iPhone 6.