Board Thread:Questions and Answers/@comment-11406720-20130630011115/@comment-4651179-20130630051855

Well the "ghost" wasn't actually a ghost but a way to represent Peter Parker was still in his body, he actually was (more or less) like one of Deadpool's inner voices.

And that "ghost" is not flying around anymore, the last of Peter was destroyed by Otto.

But there's still hope. High are the odds that Marvel will bring Peter Parker back as a marketing strategy for when The Amazing Spider-Man 2 is released next year.