Talking to Eurogamer in an interview for Fire Emblem Echoes: Shadows of Valentia, Hitoshi Yamagami, Producer on the Fire Emblem series (and a multitude of other titles) talked briefly about Advance Wars and what he hoped would happen to that particular series.
Personally, I’d love to do Advance Wars, but since it’s harder to create relationships between its characters compared to Fire Emblem, I don’t have a clear idea of what kind of setting it could have.
The Advance Wars series is one that I personally have a lot of interest in. I hear some of the staff here saying that they want to make one too, so if we have a chance it’s something I’d like to do!
Hitoshi Yamagami acted as producer on Advance Wars: Days of Ruin for the Nintendo DS back in 2008, the last time an Advance Wars released.