I would like to see more of Cadence.

I like her.. She's a female Indiana Jones

The mane 6 individually had their own, Spike had his, Luna had "Luna Eclisped", The CMC had theirs together and separately, and Discord had "Make New Friends but Keep Discord".

For such a prominent character who gets at least mentioned in so many episodes, I'm surprised she's not had her own day in the limelight yet. I think it's about time we got to know her better! :)

Too many to choose.. Hmm.. Perhaps Celestia and Zecora. I'd like to view episodes of more species rather than just ponies. Zecora's background would be very interesting!

Who knows, maybe we will find something interesting about him

FLASH SENTRY DOESN'T STEAL WAIFUS. EVERYONE LOVES HIM.