It's sad that the best selling Fire Emblem game is the one that is probably the worst as an actual strategy RPG. It will be even more sad when Hoshido destroys Nohr in sales so Nintendo/IS will end up ditching the older fanbase entirely.
It's extremely unlikely that the first new/non-remake Fire Emblem game in 6 years wouldn't have sold 250k. Awakening didn't save Fire Emblem.
Yes and no. The metric was 250k in Japan, and even higher if on the Wii U ... and there's no way it would have hit the marks on the Wii U.
Hoshido is also destroying Nohr in Japan but I'm not sure if you can isolate it to the game being easier or it being just as Patriotic as Code Name Steam was (except for Japan this time).