Huawei has rolled out the public beta for the Huawei P40 and Mate 30 series in China and the rest of the beta testers in Europe are also a part of the EMUI 11 testing program but only in the early stages.
In the meantime, Huawei has confirmed the stable EMUI 11 rollout will begin from November 2020 for the Huawei P40 and Mate 30 series devices in China. The rollout will then expand to more smartphones.
According to our information, the rollout for the stable EMUI 11 may start in December for the European consumers. You can check more information about EMUI 11 rollout schedule in the article linked below.