Folds and Flips are a pinnacle of planned obsolescence. I'm yet to see one that was replaced because of old age, not because of display technical or visual issues.
According to new reports, Samsung could be developing two successors to the Galaxy Z Flip5 aimed at different price points. Supposedly, the Galaxy Z Flip6 and Galaxy Z Fold6 will be joined next year by a third model priced at between US$400 and US$500.