According to information that I've seen, 6-core and 8-core Ryzen are coming to mobile.
6C/12T will be marketed as Ryzen 7 and 8C/16T will be marketed as Ryzen 9.
They will be available in both 15W (U-series) and 35W (H-series) variations.
Furthermore, AMD also plans to launch the Radeon RX 5700M (joining the Radeon RX 5300M and Radeon RX 5500M).
6C/12T will be marketed as Ryzen 7 and 8C/16T will be marketed as Ryzen 9.
They will be available in both 15W (U-series) and 35W (H-series) variations.
Furthermore, AMD also plans to launch the Radeon RX 5700M (joining the Radeon RX 5300M and Radeon RX 5500M).