AMD's Zen 4-based future processors are currently thought to have the code-name Raphael. It is also rumored to move on to a new LGA-based socket called AM5. Now, a new leak purports to show what one of them will look like from the other side, strange indented integrated heat spreader and all.
https://www.notebookcheck.net/AMD-Raphael-turns-up-in-new-renders-with-an-unusual-IHS-design.543673.0.html