An Idea For A Potnential New Story Series

I'm putting my Sonata redemption story on hold for right now, and I wanna start work on this new one.
I got the idea thinking about unlikely roommates, and I thought of Maryke Hendrikse (My favorite voice actor) and the characters she's voiced.
So I want Sonata Dusk & Gilda to be my odd couple and get into all sorts of crazy adventures and random shenanigans. Polar opposites always make for laughs (Hopefully I can deliver them).
Still deciding if this should take place either in pony world or the EG world. Please by all means let me know which I should do.