Nancy Wickwire is one of the actors. She played Liz Matthews after Audra Lindley left the show, and she certainly resembles Lindley in this film. Wickwire has been rumored to have been Connie Ford's partner. And it has long been speculated the character Nancy McGowen was named after Wickwire, who had been ill and passed-away just a few days after Ada's baby was born.
The stuff about Lisa Brown doesn't surprise me. About 8 years ago, a friend who worked behind the scenes at ATWT and GL described Lisa and Martha Byrne as being the "mean girls" on the World Turns set.
If Emily had ownership of the house, then decided to let Susan raise Allison there (perhaps hoping that Allison would feel more of a familial foundation) where Allison would feel "grounded" rather than the feeling of being "unmoored" the way Emily felt as a child).
And noooo, I don't like the idea of killing off Ellen when her longtime portrayer is still among us. Soaps have done this too often, and it usually strikes me as sad and desperate when they do.