The new iPhone will have a better 4G LTE
At the launch iPhone 5 from UKOnly one network of UK was LTE 4G: Everything EverywhereWhich currently offers 4G of the band 1800MHz. In 2013All the other big names will come to offer 4G and other bands. iPhone International already working in different bands 4G in UKSo you can expect the iPhone 6 UK (And, optionally, iPhone 5S) To be better than iPhone 5.
When the iPhone 6 will launch devices iOS it should also have "unclassified communication approval" in FCC U.S., which means you will not have to go through a lengthy approval process.
6 iPhone Wi-Fi can be 802.11ac
Wireless charging technology on iPhone 6
Wireless charge is not yet mainstream. It might help Apple to give an impetus in this regard? Reports CP Tech show that Apple filed a patent for a wireless charging efficiency, but if we think back, Apple has filed patents for a lot of things imaginable. If you have this possibility we'll see.