After I first saw it, I knew J. Depp's character/Barnabas wouldn't be around if there were any additional film(s). Although, if there were 2-3 more movies, I suspect Barn and Victoria would have cameos.
I think someone (Stokes) might actually reveal the true nature of Laura's existence & 'death'. With all the 'supernatural' stuff in Collinsport, someone could have put a phony ending for Laura (perhaps per her request).
And, I think we need some 'shops' in town....I do think some Collins would return, rebuild the cannery, and since it's 2015, would diversify.
It would be nice that while busy building a new Collinwood (don't know if she'd name it that), Liz could meet and slowly date Schyler Rumson (NOT a Levi!!).
So, David would be a rebellious teen, he'd get to learn about his mother....and while searching through debris of old Collinwood, he'd find an old fashion phone....
Some of the men who would be building the new Collinwood might have names such as Joe, Chris, and young 20ish Sammy.
Patti