Team Group, the OEM behind the gaming-oriented T-Force memory products, has announced it is working on consumer-grade DDR5 memory. They are to be 16GB in capacity per module and to have a high 4800MHz clock-speed. This project is at a stage at which it is working with companies such as Asus and Gigabyte to see if it can work with their motherboards.
https://www.notebookcheck.net/Team-Group-reports-the-development-of-its-own-DDR5-memory.509526.0.html