It is in development, although it is still extremely early. I also am only working on Taiji stuff in my spare time now, so it will be a while.
Thanks for the reply! I was just watching some of your development log videos on YouTube and I can certainly understand why you would take on that challenge yourself, to make sure it's all done correctly and in a maintainable way. Best of luck with that process! I hope it goes smoothly for you and I will definitely be keeping an eye out for the Switch release :)