I keep playing the devil's advocate here so take my remarks lightly, but if you look at the upcoming movie and any of the CRB thus far then it simply doesn't tie in anywhere. There is not a part of the EotE book that could be used or has a lot of room for new additions for instance.
Basic gameplay? Same.
Character options? Numerous new alien species, plenty of new career options.
Vehicles? A lot of new ones.
Weapons? So far we have seen a lot in the trailers and behind the scenes footage.
The Galaxy? New planets, etc.
History and setting? New.
NPC's? Plenty of new ones I am sure.