I spent the whole last week translating an interview about Fire Emblem Echoes: Shadows of Valentia. It was featured in the July 2017 issue of Nintendo Dream (released May 20th, 2017). I had to find and buy the magazine too! This post is the entire interview in one place for your convenience (you may notice the last few days have snippets from it, separating various sections).
A big thanks to VincentASM on serenesforest.net for referring me to the fact that nobody had translated it yet (that we know of). Please link back if you use any part of the interview as I put a lot of time into it. The original Japanese transcript I (re)typed up is available by request.
I recommend reading a previous interview about this game as some things the devs said in it are referenced.
Please note the third section has spoilers. The section has a clearly marked spoiler warning from the magazine and me, so please be weary.