AMD is on track to deliver its next APUs next year, according to fresh Linux driver revisions. The two series, codenamed Dali and Renoir, are not based on the Navi architecture, but they should still offer improvements over existing Picasso APUs.
https://www.notebookcheck.net/AMD-readies-impressionist-and-surrealist-APUs-for-2020-release.434860.0.html