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A faster 64-bit A7X processor
A new processor is all but inevitable in the next iPhone. Despite the never-ending legal spat between Samsung and Apple, it's still likely that its main rival in the smartphone space will produce the next-generation chip — even if Apple is slowly attempting to move to in-house chips. Expect improvements to the M7 coprocessor, and additional 64-bit chip features.
At long last, all-day battery life?
iPhones have typically always suffered with one major problem: poor battery life. The more technology each iPhone packs in, the better the battery, but the high-resolution display, the network capabilities, and other features often offset any improvements. For business users particularly, many will want an iPhone that lasts all day without needing to be charged up. Apple will need something more than the 10 hours on 3G talk time to really wow its customers.
Image via CNET
More memory: 128GB at very least
Currently the iPhone comes in three storage capacities: 16GB, 32GB, and 64GB. Apple broke the mold by dishing out an iPad with 128GB of storage. But we have yet to see a version for the iPhone. Many use their iPhones as portable media devices and want to store vast amounts of music and video content, but are restricted by the storage space.