Lots of videos, screenshots, and info for this game coming out thanks to E3.
The game is now being called Genei Ibun Roku ♯FE, albeit tentatively
For convenience I will probably use # and not ♯ most of the time
Some people are still calling it Shin Megami Tensei x Fire Emblem (or incorrectly, FExSMT or some variant) but Nintendo is NOT calling it this and is instead saying that it is its own thing. Because it is. It's not a simple crossover, it's a new thing that is fundamentally more like an SMT or Persona game but with a lot of Fire Emblem references and nods and even characters. That's what it is, so yeah.
A lot of details came in thanks to the Treehouse Live showing:
http://www.siliconer...s-from-e3-2015/
I covered a lot of the latest on the game and there was another showing of it from IGN that I linked to on my Twitter... it is mixed up amongst all the Fire Emblem Fates stuff, but since I don't want to recollect everything for you, feel free to just skim my Twitter if interested: https://twitter.com/fireemblembuzz
Thoughts? Impressions? Things you are curious about, want clarified, want to discuss, etc.?