Oh man, this is going to sound very Fluttercord, but I couldn't help it after seeing the Season 4 finale! For season 5, I really hope that they revisit the Hearts and Hooves day concept and give a possible focus to developing relationship between Fluttershy and Discord. (bear with me on this one).
I mean its heart and hooves, so if you're a pony, you're expected to find another hoof (another pony). It would be a great message too =that just because someone is different from the norm, shouldn't stop you from caring for them (love is in all shapes and sizes you know) Anyway, I'll get out of my clouds soon.