According to EA, Titanfall 2 will not be released during the 2016 fiscal year, but a 2017 fiscal year release is likely. To put that in term of an actual date the 2017 fiscal year runs between April 1, 2016, and March 31, 2017.
While Titanfall was an Xbox One exclusive, the sequel has been has been announced as being multiplatform.
I had a lot of fun with Titanfall. I think the whole robot gimmick adds a hook to the game that elevates it above your average shooters. I am excited to play a sequel to it, I just hope they add a fully fleshed-out single-player campaign that really makes Titanfall 2 a more complete package.