I think we will get a really small teaser in this months direct and then get more things announced maybe in another FE direct in February, but to be honest i don't think FE 16 will release in 2018 IS were working on SOV this year and currently working on heroes and the last DLC for SOV, so yeah i don't think they can release a fire emblem game every year, and FE 16 is a console game so is going to be big.