The SERI provides updates on the state of Swiss participation in EU Programmes on their dedicated website. Furthermore, you can find a regularly updated Q&A helping you with your burning questions.
The call for the StG will open on 25/2 with a submission deadline on 8/4. The Consolidator Grants call is planned for 11/3 with a deadline on 20/4, while the Advanced Grants call should open on 20/5 with a deadline on 31/8.
These dates are subject to the adoption of Horizon Europe (HE) and the 2021 ERC Workprogramme. There are still uncertainties regarding the status of Switzerland in HE.