Stumbled across this excerpt from the 25th anniversary interviews. Series producer Toru Narahiro had some interesting things to share about a scrapped title that was being developed for the Nintendo Wii.
After Radiant Dawn, the FE development team had been told by corporate "do not release another title on a home console." Although their efforts never came to fruition, Intelligent Systems began toying with their first "simplified FE" concept for the Wii.
Another interesting tidbit? There was a "staff reset" after FE10 flopped - which nicer way of saying that a lot of the team got laid off. The interview touches upon the person who became Awakening's director, Kouhei Maeda, who wanted to direct the work-in-progress Wii title. Apparently he'd been talking about adding marriage as a gameplay element for quite a while.
One of the few screenshots of the game show character models for Ilyana, Stefan, and what appears to be Rhys, with some enemies off in the distance. It mostly seems like they were playing around with FE10's assets. Ultimately, this experimental project was a game design prototype that never became anything more than that.
A scanslated design doc is also available, which sheds a bit more light on the concept.
Narahiro cites the Pikmin series as an inspiration for the new controls; instead of a traditional overhead view, it seemed as though they wanted to take Fire Emblem in a more traditional RPG direction with an open field explored by your party of characters. Unfortunately there are no details on the planned combat system. The only thing I can think of is that approaching a group of enemies would throw the game into an overhead grid combat system, similar to traditional FE with a bunch of smaller maps contained in every inch of the traverse-able overworld.
The fully translated excerpt is available courtesy of Kantopia:
This is probably some of the most interesting FE-related news I've come across in a while. It's always fascinating to think "what could have been?"
Curse you and your nine waifus, Maedaaaaaa!