Board Thread:Wiki-Related Discussion/@comment-26159109-20160314084024/@comment-2153169-20160315134528

Mary Margaret is still her name. Whatever happens, it is her cursed name. Henry can choose to be called "Little Pony", his name would still be Henry.

Moreover, we won't make this decision until the next episode. For now, she said that, and as Paul perfectly said it it could be just a metaphore.