A list of AMD Navi GPUs was revealed by AdoredTV based on his analysis of existing Navi rumors and some insider information. The Navi lineup will be apparently led by the top-end Navi20 comprised of the RX 3090 XT and RX 3090. The mid-range Navi10 will see the RX 3080 XT, RX 3080, and the RX 3070 XT while the entry-level Navi12 will feature the RX 3070 and RX 3060 SKUs. Except for Navi20, the other two are expected to launch sometime during E3 2019.
https://www.notebookcheck.net/AdoredTV-reveals-a-list-of-planned-AMD-Navi-GPUs-estimates-marginal-performance-improvements-over-the-Vega-64-and-Radeon-VII.420198.0.html