Apple has registered eight unreleased Mac model numbers with the EEC. Five are entirely new, so it would seem that Apple is readying itself to release some new Mac hardware. Rumour has it that the company's first ARM MacBooks will be unveiled in November.
https://www.notebookcheck.net/Apple-registered-eight-Mac-model-numbers-with-the-EEC-ahead-of-possible-ARM-MacBook-release-in-November.497911.0.html