Future capabilities of computers

I'd say that Artificial Intelligence is something worth to keep an eye on. Here's an open-source project that's supposed to be pretty attractive: mycroft.ai

Also, ad 3d printers evolve in their quality and material usage, they might be closely tied to some innovations in computer science in terms of software. Check this article to catch up on some 3d printing trends for 2016: mylocal3dprinting.com/blog/3d-printing-trends-what-can-we-expect-in-2016/