Color eink displays integrated in surprising places will grow a lot. I think we may even finally see eink intersections where the lanes change dynamically depending on the light cycle.
I also think both eink and oled will make its way into fashion among a subculture of younger people, people who live wear, avatars. I can see a big opening for a social marketplace for light rythms and patterns that you can download into your jacket or hat. I imagine some people will pay thousands of dolars for dynamically changing unique "2nd skins" made by botique designers and sold via tiktok.