I'm worried that the film might give off a fictional/revisionist history that paints Lincoln as something other than a racist and a tactical politician. A lot of people in America, specifically low key racists seem to have this image of Lincoln as a voice of progressive reason who actually believed in the equality of all human beings. Dude didn't want to end slavery because he thought it was morally reprehensible and the civil war wasn't just about slavery. I hope this movie doesn't contain singing grinning blacks that are so glad that a white man has given them something rather than blacks who are celebrating freedom they fought and died for and that it contains complexity and nuance that shows just how complicated both Lincoln and the times he lived in were.
I doubt that will be the case though, this seems like it might be one of those feel-good movies for white america like The help or Driving Miss Daisy. I hope I'm wrong though and Spielberg and co. go hard and deliver a deep drama with excellent writing and something resembling historical accuracy from more than just a purely aesthetic viewpoint.