According to new rumours, Samsung plans to equip the Galaxy Z Fold4 with an exciting upgrade compared to the Galaxy Z Fold3. However, the upcoming foldable smartphone will retain its predecessor's display formats, for better or worse.
https://www.notebookcheck.net/Samsung-Galaxy-Z-Fold4-Built-in-S-Pen-due-for-next-generation-Galaxy-Z-Fold-but-no-major-external-design-changes.600011.0.html