In the release notes of the last week’s update for “Boot Camp”, Apple’s program that allows users to boot into an alternative Windows installation on Mac, an unreleased 2020 16-inch MacBook Pro was mentioned. As you can see below, the update fixes a stability issue that supposedly occurred ‘during heavy CPU load on 16-inch MacBook Pro (2019 and 2020)’.
It is possible this could be an error, but the brackets to indicate multiple models were very deliberate, and there has only been one released 16-inch MacBook Pro model so far. New Macs with Apple Silicon are rumoured to launch in November, but the transition to ARM is going to take a while, and only the lower end MacBooks are rumoured to launch in November (the base “MacBook”), as they will be paired with less powerful processors.
The MacBook Pro 16-inch could be released in October but it is unknown what changes will be coming to the Mac, as Mini-LED is unlikely to be introduced yet. It is likely that the new model will be a simple refresh with updated 10th-gen Intel processors, but we’ll have to see.