I've had a couple of banger predictions about the Linux ecosystem.
Here I am back in 2022 asking if we could do something like #wayback to get away from #x11 faster.
Others include "can we have a generic uring mechanism in the kernel for all I/O?" and "Vulkan will be the norm for pretty much everything once the toolkits are running on top of it."
BTW, I predict that at some point not too far in the future, the Linux kernel will have a 'default largepage' build that makes a lot of THP and Folios complexity go away and increases performance enough that it becomes the norm. It will be like the 32/64 bit thing, but with the 'small page' kernels ending up only for embedded or other low-memory use cases and CHUDs.