yeah how about Hollywood come up with an original idea for once?
The historical epic genre could always do with more movies...but that is just my bias.
What about an Oscar-bait title such as "Trafalgar" or "Vimy" or "Hastings" - you know, stealing from history. Dunkirk will be excellent, because of Nolan, but history has so many ways to captivate us on the screen...just pick something.
I still say an epic based off of the campaign of Trafalgar would be excellent. Visual effects, cinematography, and acting Oscars for sure.