I had written up a long message about the launch of the new iPhone 5S and 5C and that there were rumours already out that the iPhone 6 isn't far off.

the iPhone 5C is said to be a cheaper version and very similar to current iPhone 5 but just updated, iPhone 5S is rumoured to have more to it and much more updates.

iPhone 5S Fingerprint Scanner Concept

Published on Sep 6, 2013
iPhone 5S Fingerprint Scanner concept for enhanced iPhone security. iPhone 5C could potentially be loaded with this iPhone feature too.
Fingerprint Scanner could be a key feature across iOS7 powered devices
Say goodbye to passcode locks and hello to Fingerprint Scans.

more on rumours from news.com.au
What to expect from Apple's iPhone 5S launch
What to expect from Apple's iPhone 5S launch | Information, Gadgets, Mobile Phones News & Reviews | News.com.au

2. A bargain-basement iPhone 5C
Apple is expected to release a low cost (or lower cost) iPhone on Wednesday. The phone will reportedly come in a number of colours and contain a plastic body, though the internals will be the same as what can be found in the current iPhone 5. The iPhone 5C is rumoured to cost about $99 subsidised (at least in the US market), and $350 if purchased off contract, Mashable reports.
Many have speculated that the 5C is designed to appeal to the Chinese market in order to compete with its other mobile phone providers, namely Samsung. The China market is essential for Apple if it is to compete with Android's market share. (Android phones currently make up 79 per cent of the smartphone market globally, according to a report from research firm, IDC).

Also more about iPad mini and iPad 5.