It's still too early to think about it happening. We could even wait for a September Direct. While it's not released, it can be delayed. Anyways, I honestly think that we will see something about FE16. Smash can't be the only big first party of autumn, and Pokemon and Metroid are 99% sure released next year. Besides, I think Smash would help FE16 if the protagonist appears on Smash. Also, the thing that Cipher hasn't shown anything about wave 14 at this point is a little suspicious...