The Apple Watch Series 7 release date appears to be nearing as no less than six new model references have appeared in filings for the Eurasian Economic Commission (EEC). While it's expected the Apple Watch Series 7 will get a new design and an updated processor, the inclusion of a blood-sugar sensor in an Apple Watch is still likely years away.
https://www.notebookcheck.net/Apple-Watch-Series-7-release-date-nears-as-six-new-model-references-appear-in-EEC-filings.553126.0.html