Is Archie Mitchell going to return to Eastenders as a ghost to haunt Ronnie I read in the Soaplife magazing that a ghost from past comes back to haunt Ronnie?

Answer 1

No he isn't. This is just a phrase used to describe that something from the past is going to come back to "haunt" someone - i.e. cause them turmoil. In this case, they are revisiting the revelation from the live episode that Ronnie was raped by Archie as a child.