Oh you FG, how you tease us.

[Googolplex]

It can't be a classical Amnesia 2. Because Daniel could died in the ending of Amnesia.
So we get a new character, something like Justine?
I don't believe that this would be a good idea to change character every game.
I would prefer like Penumbra, Philip is the character in all three parts.

Or maybe Amnesia 2 plays before Amnesia, perhaps 10 years before... then we have Daniel again, but the story don't have a logical context.

Let's be patient and awaiting what Frictional Games does present us.