The latest generation of Samsung's foldable flagships are projected to be announced in August 2021. The Z Fold3 and Z Flip3 are said to be right on track for this event, having now entered mass production. Interestingly, they are allegedly being manufactured in far higher volumes compared to their predecessors.
https://www.notebookcheck.net/New-Galaxy-Z-Fold-and-Z-Flip-3-rumors-might-imply-hope-for-cheaper-foldable-flagships-in-2021.546833.0.html