A new leak says that AMD is working on two new CPUs with 3D V-cache, the Ryzen 5 5500X3D and the Ryzen 7 7700X3D. Both feature 96 MB of L3 cache and are underclocked versions of their better-specced siblings. https://www.notebookcheck.net/AM4-is-not-dead-AMD-Ryzen-7-5700X3D-and-Ryzen-5-5500X3D-reportedly-in-the-works.768083.0.html
IMHO: AMD ought to be commended here for offering new products and possible upgrade options for their older platforms.