In the past, these legally required registrations have been spotted prior to the release of new Apple products. It's unclear if they point to a new notebook or just updates to existing models. Apple's 12-inch MacBook hasn't been updated since June of 2017 but the MacBook Air was refreshed last October and the MacBook Pro got a spec bump last month.
The most exciting possibility is that Apple could unveil its rumored 16-inch MacBook Pro. In February, analyst Ming-Chi Kuo first predicted the release of a 16-inch to 16.5-inch MacBook Pro with an all-new design in 2019. However, a subsequent report indicated that the notebook had been pushed back to 2021. It's said that Apple is considering the use of a Samsung OLED display for the device.
If Apple were to unveil new MacBooks, it could do so at an event in October. Please follow iClarified on Twitter, Facebook, Google+, or RSS for updates.