The trusty 8MP camera has served the iPhone well so far, with Apple having always taken the stance of not simply throwing megapixels at the problem, but many think the iPhone 6 will finally make the jump to a 13MP or 16MP sensor.
3. Revamped design
Expect a slimmer phone and a metal unibody. Other changes are likely to be small however, Apple likes to maintain a feeling of congruency through its devices, the style of the iPhone having not really changed that radically since the iPhone 4.
4. Better TouchID
On the iPhone 5s the fingerprint sensor was used solely for unlocking the phone and making App Store purchases, but it should have more functionality on the 6 and work in tandem with NFC.
5. Beefier hardware
A 64 bit Apple A8 processor probably, 2 GB RAM and storage size options up to 128 GB. Sadly a drastic improvement in battery life is unlikely though, as all these new features require ever more energy to run.
6. iWatch
A telephone! For your wrist!
Many fashion journalists have been invited to the event this time around, so wearable tech is almost a certainty.
Bonus event certainties:
- Casual slacks
- Speakers to use words like "distillation" and "harmoniously" and certainly "experience"
- Muzak
- Raptuous applause for features people aren't quite sure they want or understand
- Selfies of people rock climbing and hot air ballooning as demo wallpapers
- Everyone trying to avoid that whole iCloud thing as much as possible
And even though these things still haven't been announced yet and may never be announced, there's a already queue for them outside an Apple store in New York, and it started almosta week ago.