With WWDC.
Gurman also goes on to state that we might not see any major hardware changes this year, considering Apple introduced a new model, the Apple Watch Ultra, just last year. However, big hardware changes are expected to come in 2024 where Apple might shift to a larger, custom-built display for its watches.
In a tweet, Gurman (@markgurman) expressed that he believes watchOS 10 might have much more notable changes as compared to what's expected from iOS 17. watchOS 9 introduced a bunch of design changes and new features such as low-power mode, and continues to receive feature updates with subsequent iterations. It'll be interesting to see what sort of big interface changes Apple is planning for watchOS 10.
Some expected changes could probably be new watch faces, workout modes, more native watch apps, etc. While we might not hear about new watch hardware at WWDC, some of the new features that Apple will talk about could point to what we could expect on the hardware side of things, come September. Gurman does mention in his tweet though that we probably won't see any major hardware changes this year for the Apple Watch, as those are expected to happen in 2024.
Earlier rumours suggested that Apple might skip the Watch Series 9 naming scheme and jump directly to Watch Series X, just like it did with the iPhone.
This year, WWDC 2023 will take place from June 5 to 9 at Apple Park in Cupertino, California. Apple is expected to announce reportedly delayed to later Q3 2023.