According to a new report, the next MacBook Pro 16 will feature an Apple M1 chip, not a more powerful next-generation model. Any design changes will be on the minor side too, resulting in the 2021 edition looking basically the same as its 2019 predecessor. Minor changes could include a switch to a flat design and the return of legacy ports though, along with slimmer display bezels for the new model.
https://www.notebookcheck.net/The-2021-MacBook-Pro-16-may-not-be-the-performance-upgrade-we-expect-from-Apple.524300.0.html