Code changes in the beta program for the iOS 13 suggests a new method for transferring data using cables.
Additions in the Setup app may mean that Apple could be working on a new wired transfer process. One image reveals two iPhones connected via a cable, but hardware limitations, such as the absence of a Lightning-to-Lightning cable doesn’t explain how this could be achieved.
There’s the possibility that Apple is still working out the kinks or haven’t yet activated the feature in the latest iOS 13 beta build, or that it would be available at all. Currently, there are two data transfer methods when you have a new iOS device. One, you can use the iCloud backup or an iTunes backup. The second is by having a second device logged in to Apple ID and via wireless transfer.
iOS 13 is expected to be released this fall of 2019, along with macOS Catalina, watchOS 6, tvOS 13 and iPadOS 13.