I'm in the minority here, but I don't need them to be different.
They've shown they can't give SCH multiple fairies the way SMN has multiple egi without one just being better (akin to the way there's such imbalance between AST's Noctournal and Diurnal sects).
I don't want them to return to that.
I'd rather they continue designing one fairy and building SCH's kit with it in mind.