I doubt that it will be covered in the first season.
I doubt it's anyone already from fairytale world, since everyone their is bound to Storybrook except Mr. Gold who has links to the curse in the first place, and Little Henry and Emma aren't pure fairytale people. I could be anyone. There is also the possibility it will never come up.
Lost has a influence on this show, in Lost we only saw baby Aaron's father in the one episode where Claire found out she was pregnant before the crash, and he leaves her, he never comes back or is mentioned again on the show. They might or might not do this for Little Henry, it could go either way I think. I'm wondering more about who Snow's father was/is, it's probably someone signifigant.
Reading several spoilers sites the ID of Henry's Father and his backstory may not come this season. Your theory though is an excellent one. I suggest you take that to a TV forum site for discussion see how others think.
I know of a few but YA terms of use forbids my posting them here.
Maybe we might find out more about Little Henry's father. But if you ask me I don't think Henry's father will have nothing more to do with the plot other than how little Henry was concieved.
That would be interesting! I have that point to, is something that would make us know more about Emma, but I doubt of the last part... is not a bad idea at all, the knowing about evil queen adopt a baby from the "Hope", but that wouldn't take her anywere, 'cause she don't even like Emma's presence. But, well, I would also like to know who's the married man that Emma envolved with (.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.