An earlier leak asserted that Google had chosen May 22, 2020 as the launch date for its new mid-ranger, the Pixel 4a. However, an update from the same source now purports to push this event further back into June. It may or may not coincide with a new kind of online conference arranged for Android 11.
https://www.notebookcheck.net/The-Pixel-4a-s-launch-may-be-even-later-in-2020-than-previously-thought.464826.0.html