We have received numerous reports that the Friendship Express audio fixed DVD's have been showing up in people's mailboxes today. It looks like some people on their forum are celebrating about it as well.
It sounds like the only change is the audio is episodes one and two. Derpy remains completely intact. It is not guaranteed that future versions of these DVD's will still have our favorite mailmare in all her wall-eyed glory, but at least the replacements are fine! They don't actually require you to send your current disc in either, so double derp for all!