The AMD Ryzen 7 4700, Ryzen 5 4600 and Ryzen 3 4300 are said to be in the works, according to a new leak from BiliBili. All three desktop processors will be based on the Renoir-X architecture, have their iGPUs disabled and have a TDP of 65W.
https://www.notebookcheck.net/AMD-reportedly-working-on-three-new-desktop-processors-based-on-the-Renoir-X-architecture.592729.0.html
Personally I'm suspecting that these are going more OEM-only parts, like the 5300G, the 4000G series itself and the upcoming Athlon Gold 4150G (and probably some related parts). AMD has abandoned the DIY sub $200 market and it's never going to look back, especially if they will keep doing well with their server and high end parts.