I've been lurking around on the forum for ages now. I'm a long time fan of the series and decided to register today just to give my opinion on the matter.
I'm all in for solutions that help newcomers or casual players learn and enjoy the game more. However, in an era where a lot of companies constantly dumb down their games so they can please a larger audience, I'm in constant fear the casual mindset could hurt the main idea of series like Fire Emblem. I'm not saying here that perma-death is the "right way" to play it or anything, but it was one the many reasons a lot of the older fans got into the series in the first place. FE13 already feels heavily affected by this new approach and I don't see it getting better on FE14.
Basically I would love if IS find a way (whether is casual mode or something else) to help introducing the series to a new generation, but without hurting the main idea of the series too much. But that is easier said than done.