https://wccftech.com/16-inch-macbook-pro-reference-macos-catalina-10-15-1-beta/

Apple is expected to host an event at the end of this month where it’s tipped to announce new products such as an iPad Pro, AirPods Pro, and our personal favorite, a 16-inch MacBook Pro. The MacBook Pro has been the subject of many rumors and now new pieces of evidence present in macOS Catalina 10.15.1 beta have been found which highlight some minor changes.

It’s being reported that macOS Catalina 10.15.1 beta contains references to the 16-inch MacBook Pro. More specifically, it’s the code snippets in its first two betas that mention the device. That’s not all, as the code even contains the icons of the new laptop. These look a lot like the 15-inch MacBook Pro, which means the next generation will not get a major facelift, even though the display size would increase to increase to 16 inches when measured diagonally.