Nah, those expansions are to merely "expand" upon an existing idea.
No expansions from Oblivion, Skyrim, Fallout 3, New Vegas etc magically made the game radically different, they merely added on to an existing concept.
I believe that we will see lots of quality of life updates, lots of patches and sure, expansions....I don't see that altering that score to a massive degree though. It didn't for Fallout 4 btw
Look at Assassins Creed, look at the people who absolutely hate that IP....now tell them tons of DLC will come out and they will have hundreds of more hours of content, what score did you see fucking change based on that with those RPG ones? lol
I think it will have strong post launch support, but I think its foundation is set and its concept is intact. Those that dislike the general idea of this game, I don't think will magically ignore all of it based on some DLC.