2017 for JPN maybe.
2017 for Japan is very certain. But the game is still slated for Western release (EU and US lists) for this year as well and I don't think that Nintendo would include it if they knew that there is only a slim chance of hitting that target. "2017" and "tba" are very different things and the latter does not hurt that much to state.
So I guess that they'll push for a 2017 release in the West, but it may get pushed into Q1/2018 if something awful happens.