While doing an interview with Hey U Guys, director Ridley Scott revealed that the official title for Prometheus 2 will be Alien: Paradise Lost. That's a very surprising title as it obviously connects to the rest of the Alien franchise. In regards to the new title, the director said:
"Actually, it’s going to be called Alien: Paradise Lost, so Prometheus 2 isn’t what it’s really going to be. You know the poem? I doubt you’ve ever been through it, have you? The poem’s a book, Paradise Lost! It sounds intellectual, but there’s a similarity to it, and that’s where it stops."
This is an interesting title, and one that might help the marketing aspect of the film. Audiences don't seem to have a positive reaction when they hear the title Prometheus, but with "Alien" in the main title, it might change the way people see it. Scott previously talked about his new Alien film and where the story will lead, saying:
"You [could] leave the first film alone and jump ahead, but you can’t because it ends on too specific a plot sentence as she says, 'I want to go where they came from, I don’t want to go back to where I came from'. I thought the subtext of that film was a bit florid and grandiose, but it asks a good question: who created us?
"That raises the question to me. Same as was depicted in 2001 when... that ape that had been grubbing around in the water hole with all of them bickering at each other... has a bigger thought injected into his brain than Newton got sitting under a tree and seeing an apple fall. That is one gigantic, magnificent leap of a thousand years of evolution; that is where the world begins. It is pretty grand thinking, and that’s what I want to explore. You’ve got to go back and find those engineers and see what they are thinking. If engineers are the forerunners of us, and therefore were creators of life forms in places that were possible for biology to function, who created that? Where’s the big boy?"
This title makes all of that talk about Prometheus not being connected to the Alien films even more silly. It should be interesting to see how this Alien: Paradise Lost turns out.