Reading/writing part of the brain is a repurposed part which otherwise responsible for the faces, facial emotions, etc. recognition. Giving the already noticeable decrease of the in-person skills in the young "texting" generations we can speculate where it may go.
They might all become hyper-nerds interested in D&D?
Sounds cool.
But then, my brother was already into D&D in the late 80s back when I was learning to read from the Commodore 64 user manual, so of course I'd think that :P