The main theme that came out of "the last jedi" was duality, that everything isn't right or wrong, good or bad but its more of sliding scale. It was a mistake to do that in the recent star wars when all the classic star wars movies were largely black & white, good and bad. U can just change something that big and expect it to go well.

Thats what makes GOTS so good is that every character can do bad things and good things, so more than others but no ones hands are clean of blood. To put that ideology into new star wars will be great, unpredictable and put the excitement and adventure back into star wars.