I am sure that this is in the pipeline somewhere, but as far as I recall, we have had no new circuits since the 3D update in early 2021, at which time we also lost the Nurburgring and Silverstone 09.
I am aware that with the game being 3D, the modelling for circuits is more difficult, and there are also licencing issues with circuits too. However, since that update we have had some great circuits return to the F1 calendar, like Zandvoort and Imola - and if it is not possible to add current F1 circuits for licencing reasons, then there are other great circuits like Kyalami.
Frankly, I have found that the game has become increasingly stale in recent times, and the updates such as a new car model or technical director abilities are not things that I (or others I know who play the game), are overly enthusiastic about.
I know the development team has had a lot of difficult circumstances in recent years, but I really think this should be a priority when it comes to adding new elements to the game.