>>27065
I suppose they just seal the gaps and allow the EU to fully exist as its own entity, separate from the movies. The actual novelizations themselves however, are great companion pieces to the films.
>but the comics do literally nothing new.
Not entirely true. The comics sometimes have scenes based on earlier versions of the script, deleted scenes, CGI that was never animated, footage that was never shot etc. For example, this is noticeable on the Order 66 montage in the ROTS comic.