I was watching 'The Faculty', and...
If they make a 4th installment of "Poltergeist", I think they should really cast Laura Harris as Carol Ann: http://www.imdb.com/name/nm0364977/
I saw her in the movie "The Faculty" and immediately thought "Is that the original Carol-Anne all grown up?", then I googled her name and found out she wasn't the actress who played Carol-Anne, and Googled the correct actres, Heather O finding out she actually passed away right after the movie was shot. I was saddened by this because of how young she was, and of how all of these movies made her who she was, then all of a sudden she was gone because of a doc's misdiagnosis of sickness and drugs. I do believe that Laura Harris has a striking resemblance of a possible older Heather O'Rourke and she would be a great replacement...just without the annoying southern accent portrayed in The Faculty. Anyone agree?