I like that they are adding a more Eastern flare in the games. I would be even more thrilled if other cultures were represented in Fire Emblem as well. I think it would be so cool to have African, Alaskan, and Indian(this would be my absolute favorite because their traditional clothes can be so colorful and pretty) cultures represented in FE games. However, the chances of this happening in the immediate future don't seem very likely but I hold out hope.
I think that some characters in the game will be written better than others but that is true in most things. With the giant cast of characters in Fire Emblem games there are always some that are pulled off really well and others that can't break free from their stereotype. I think that FE14 will be no different.