I feel like making a good Fire Emblem clone (or say, FFT for that matter) would be a tough balancing act especially for a small dev.
1. If the character art and designs are lousy, that presumably hurts the experience, if you don't care about losing them.
2. If the writing is bad that hurts the experience.
3. If the design of everything is too different from FE or FFT or whatever, it might not feel like the game people want to play.
4. If the design of everything is too similar, it comes off as a clone, maybe at risk for a lawsuit.
5. Sort of on the character design note, FE and FFT have game worlds, characters, art styles, or whatever that serves as a sort of history. Some things are recognizable.
I don't know if my points make much sense. Perhaps they're just trivial observations. I just feel like doing one WELL is tough.