Hey, I did a thing which may not be neccesary, but might help.
The new unicorn at the end of Make Your Mark, people seem convinced her name is Misty based on a voice actor thumbnail that showed a “Misty” with others from the mane cast. It’s not confirmed, though, but if it is, making “Misty” into a character tag would affect the other dozens of images with a Misty tag, for instance the Pokemon gym leader.
So I turned all the pony ones to “Misty (g5)”, and when her name is revealed, this can just be aliased to whatever her full name happens to be if it’s Misty Something, or simply replaced.