If the report is accurate, MacBook Pros will only pack USB Type C and Thunderbolt 3 ports. As with the new MacBook, you'd presumably charge it through the USB-C port and connect peripherals via Thunderbolt 3. That means you'd need some kind of USB 3.0 adapter, since the majority of storage and other peripherals still use the traditional standard. For the MacBook, Apple sells a $79 USB-C dock that gives you USB 3.0, USB-C for power and an HDMI connection.
The company will also release a new 13.3-inch MacBook Air, but discontinue the 11-inch model, according to the report. That lines up with previous rumors that Apple would kill the smaller Air model, since it has been made effectively redundant by the 12-inch MacBook. However, it also shows that it isn't discontinuing the MacBook Air completely, as some feared.
The MacBook Pro will allegedly have an OLED touch bar and go on sale shortly after the event. That would be good news to MacBook Pro lovers who've been waiting a long time for a new model, assuming the report (based on a "reliable Chinese supplier") is accurate. However, Macotakara said exactly the same thing in June, and the August launch it predicted didn't happen.