Apple's iPhone 18 series is just a few months away, but almost all of the key specifications of the flagship devices from Cupertino have leaked online, giving us a good idea of the key upgrades that we could see this year.Here's a look at the top five changes you could see with the iPhone 18 Pro series.1) New colours:While Apple is expected to keep the overall design of the iPhone 18 Pro lineup similar to that of its predecessor, we are unlikely to see Cosmic Orange return this year.Instead, the standout colour for the Pro lineup this year could be...