I don't think we should go to Equestria, just let Squideey stay and guard Derpy from the evil hasbro.
Derpy is safe. This whole rumor was started when "The Last Roundup" was removed from iTunes. This could have been because of a video and/or audio error that needed to be fixed, or to increase the visual quality, or anything else. I don't think it would be because some unknown people were offended by the character. There have always been dopey characters in animation, and I've always found them to be the most lovable: like Ed from Ed Edd and Eddy, or Goofy from Disney, etc.. I have a strong feeling that Derpy is the production team's favorite pony, seeing as they appreciated the fan's response to her so much that they began including her in every episode since around season 2 began. Derpy Hooves is practically the pony who signifies the brony fanbase, being the target for which we've ever altered with the show just from sheer support for her.
Bottom line, Studio B nor Hasbro is stupid or docile enough to remove a character which is already practically harmless.