AMD has been pretty tight-lipped about RX 6000 mobile GPUs but finally hinted during the RX 6700 XT unveil that laptops powered by RDNA2 mobile are indeed coming soon. So far, we do know about Navi 22 offerings including the RX 6700M and the RX 6600M, but a Navi 21 RX 6800M along with Navi 23 and Navi 24 may also be made available some time during Q2 2021.
https://www.notebookcheck.net/AMD-hints-laptops-powered-by-Radeon-RX-6000-mobile-GPUs-will-be-coming-soon-Navi-22-Radeon-RX-6700M-to-offer-32-CUs-90-135-W-TGP-and-likely-12-GB-VRAM.526382.0.html