Navi is the currently-accepted name for the generation of AMD processors to succeed the Radeon VII GPU. Cards based on this upcoming 7nm platform may be released later this year. A new leak points to new chipset variants for the series that may differ from those mentioned in previous rumors.
https://www.notebookcheck.net/New-rumor-claims-the-existence-of-more-Navi-GPU-variants.397406.0.html