Brodie Marschall made a petiton urging Hasbro to make EQG characters based on the Sailor Moon ponies from Friendship is Magic. Hopefully we'll get a chance to see Mercury's official cutie mark that represents the anime character just like Mars, Jupiter, and Venus. Please sign and share his petition if you strongly agree with his request.

https://www.change.org/p/urge-hasbro-to-turn-the-sailor-moon-ponies-into-humans