I also want to make a 3D (and hopefully VR) version of my old strategy video game design, Proximity, and release it on as many platforms as possible.
Make a small app using Swift and self-publish that so I can prove to employers that I have Swift experience (I've tinkered with it enough to get a good handle on it but haven't finished anything) and maybe get back into mobile development full-time again (currently doing ASP.NET development). I have a good amount of Objective-C experience but no one seems to care about that anymore.
Finally, I have a novel with a second draft that's nearly finished that I'd like to turn into an ebook form, get some private readers, and do one more quick revision before sending it off to publishers. Because of how screwed up book publishing has gotten, I may end up self-publishing, but I know if I do that it's only going to make like, 100 sales at best, so I'd rather try to find a publisher first.
If I get all that accomplished next year it will have been a pretty good year. I got a lot started in 2015 but nothing got finished.