Watching today's show has me speculating. There was a spoiler or something about extras in institutional clothes? Now I am wondering if Abby has a nervous breakdown, like grandma Laura did. That could be how they switch Abbys. And maybe Abby runs into Jack! Jack and Abby could come back to Salem together, but nah they would never reuse a story line. (wishful thinking on my part, as I am guessing Jack is only back as a ghost in Jen's dreams).