I wonder if the DLCs will follow the same pattern as the previous two games (or rather pattern of the DLCs for Fallout 3 and New Vegas since technically the previous game is Fallout Shelter) where you have the zany sci-fi DLC (Mothership Zeta, Old World Blues), the one with the tribals in rags who inexplicably can take more of a beating than fully armored BOS paladins (Point Lookout, Honest Hearts), the one where the villain is an evil renegade member of the Brotherhood of Steel who only survives to the end of the story due to plot armor and railroading (The Pitt, Dead Money), and the DLC that would be best placed after the main quest (Broken Steel, Lonesome Road)
(I just started playing The Pitt. Man, I thought Dead Money railroaded you. I can't imagine what could possibly posess the Lone Wanderer to surrender to Ashur's goons instead of just cutting them to ribbons like all the goons prior to that cutscene. And then that scene where Ashur's giving the speech...I had actually picked up a scoped .44 by that point, as well as several devices realistically capable of making short work of a cheap chain-link fence, any reasonable person would at that point just put a bullet through his eye or break into the catwalks and beat him to death with the sledgehammer, but the game doesn't let you do either of those things)
EDIT:
And Lonesome Road really should have been placed after the main quest in FNV. The Hoover Dam battle is kind of anticlimactic when all of the the Legion's other territories have already been purged wih atomic fire.