What can we expect from the iPhone 6?

The latest apple handset, the iPhone 5S, was only released very recently, met by the usual scenes of people queuing through the night to get their hands on one. But things don't stand still for long in the technology marketplace, and the New Year will see Apple release a brand new smartphone - the Apple iPhone 6. This will undoubtedly be a massively significant tech release, arguably the biggest of the year, but what can be expect from this latest iteration of the world's most successful mobile?

Display
Firstly, it has been strongly rumoured that the new Apple device will feature a 5 inch screen, the largest of any Apple iPhone to date. A full HD display is also a certainty, particularly with Sony already embracing ultra HD for its new range of high end televisions.
Operating System
The iPhone 5S runs off the brand new iOS 7, so it seems highly unlikely that the new model will embrace another new operating system. iOS7 may be upgraded for its iPhone 6 release.
Storage Capacity
There have been very strong rumours that the iPhone 6 will ditch the 16 Gb model of the phone, and introduce their first 128Gb version. There has even been leaked photographs of packaging which seems to confirm this, so this could be a meatier iPhone capable of storing a great deal of media.
Innovations
Of course, these are kept close to Apple's chest, but we do have a few ideas about new tech that may feature in the iPhone 6. Firstly, it seems likely that the phone will embrace gesture technology, as Apple has bought the company which produces Microsoft's Kinect, which enables gamers to play Xbox games without a controller.
Secondly, the iPhone 6 could also integrate gaze detection technology. This technology would turn the iPhone's screen off when you're not using it in order to save the battery, which could be considered essential as the new large screen will undoubtedly sap the iPhone 6's battery pretty rapidly.
Construction
There appear to be a couple of solid pieces of information with regard to this area. Firstly, Apple appear to have recruited GT Advanced Technologies to produce sapphire glass in a plant in Arizona to ensure that the iPhone 6 is its most durable handset yet. Secondly, it looks likely that the iPhone 6 will step up its liquid metal feature, with Apple rumoured to have submitted five recent patents for liquid metal.
Design
There have already been a few sources on the 'web of possible renders of the appearance of the iPhone 6, but it's not wise to give these too much credence. The appearance of the iPhone 6 will be the most carefully guarded secret in tech during 2014, and we'll realistically have to wait for the release of the device to see what it actually looks like.
Price
It seems likely that Apple will release the iPhone 6 at a similar price point to the previous model, so this could mean a launch price of around £500. With potentially no 16 Gb version, though, it will be interesting to see what the budget model will cost.
Release Date
This is extremely difficult to call, with some sources suggesting that Apple might market the iPhone 6 as a sort of companion to the previous iPhone, and consequently release it in around May time.
I find this highly unlikely. It's barely five minutes since the iPhone 5S came out, it's still selling well, and I doubt Apple will want to throttle it until its momentum has run out. So I think a late Q3 or Q4 release is far more likely.