Oh god, the poor EQD mailbox. Quite a few people sent this over to us. Apparently someone in the UK division of Hasbro has confirmed that Derpy is here to stay, via e-mail. It is a bit odd that we would find out this way (we have dug around everywhere without any luck, we seriously only have this screenshot to go off of), so this is going to roll with a rumor tag until we have something more concrete than random_UK_Hasbro employee.
Until then though, I guess we can celebrate! Hooray for Derpy.
Thanks to everyone that submit it! I wont be able to respond to all of these, but we love you anyway.