https://www.theverge.com/circuitbreaker/2018/9/10/17841152/apple-ipad-pro-2018-usb-c-lightning-charger-rumor

Aside from slimming down its display bezels and adding Face ID, Apple’s next iPad Pro could be making a major I/O change. As noted by 9to5Mac, reliable analyst Ming-Chi Kuo says that the next high-end version of the tablet will switch over to USB Type-C.

Now, it seems pretty hard to believe that Apple would already start moving away from its own Lightning connector in 2018; my first instinct was that this report simply means they’ll be including a Lightning-to-USB-C cable and USB-C charger in the box. Frankly, that’s what I’d still bet on. We’re getting closer to this device’s announcement and this move to USB-C hasn’t been reported previously. But Kuo specifies that it’s the entire I/O that’s changing, and his reputation speaks for itself.