people thought there would be another version of rosalina in the eventual super mario bros line wave 2, but it doesnt look like that's happening now (maybe due to poorer sales). this is getting a bit offtopic though..
i wish they'd do an entire fe line for amiibo. but they'd probably fill it with just fates and awakening characters with no love for the older games
There's always the Cipher cards.
You know, if you care to import.