Though I do have to wonder if, as technology moves forward, some people will still like text-based communications?
I think the existence of this board proves that. After all, we've had telephones far longer than we've had the Internet. There are always going to be benefits to writing stuff down rather than speaking it aloud -- clarity, permanence, the chance to edit. The only reason correspondence in onscreen Trek is overwhelmingly verbal is dramatic convenience.
And text messaging still exists quite a bit in the Star Trek Universe, particularily in DS9. With the amount of PADDs being passed around that appear to have nothing but written text on them.