Google has all but officially confirmed that its Pixel 3a and Pixel 3a XL models are set to launch on May 7. The company has posted a teaser on its store that says "Help is on the way," in a clear nod to the Google Assistant feature baked into its Pixel devices with hints of an Avengers connection in the URL.
https://www.notebookcheck.net/May-7-launch-confirmed-for-Google-Pixel-3a-3a-XL-hints-of-an-Avengers-connection-in-URL.417493.0.html