Mr.daydream: that, I think, is a really broad definition. You don't think neo noir should retain any of the conventions that made noir such a distinct sub-genre of the crime thriller at all? For instance, apart from being shadowy and pertaining to solving crimes, the two Batman movies don't have much to do with what American noir was about.
And Scarface, absolutely no way, in my book, is that a noir-ish movie in the least.
A neo-noir (an updated version of the film noir crime films and whodunits of the 40's and 50's) is an updated noir that has a certain modernized element of style, themes or content. Film noirs and neo-noirs both usually fall under the thriller/suspense genres, and some gangster movies. Some good examples of neo-noirs are: Scarface, Dead Again, Motal Thoughts, Final Analysis, Basic Instinct, Deep Cover, Jennifer 8, Malice, The Last Seduction, The Usual Suspects, Bound, L.A.Confidential, The Black Dahlia, Batman Begins and The Dark Knight.
Go to http://hubpages.com/hub/Most-Memorable-Villains-Pt there's some neo-noirs there. Check out some of the other chapters of the "Most Memorable Villains Series" for more neo-noirs, they're all linked to each other.
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.