Google announces Pixel 4a 5G and Pixel 5 for later in the fall. And there is even an official price for the Pixel 4a 5G from Google.
Pixel 4a without 5G will be available for pre-order from September 10, 2020 for EUR 349.00. If you value 5G in the model, you have to add EUR 150.00. Because the Pixel 4a 5G should appear for EUR 499.00.