Hmm, to me it sounds like they're adding actual story, a new voice actor for our ghost, lots of new weapons, an entirely new way to level up, cutscenes, meaningful and 'personalized' character customization and storylines, a redesigned tower (more and new vendors), New characters, New ghost shells, New ways to access weapons, a redesigned RNG system favoring towards weapons you haven't gotten before, a new patrol...and at least another 200 hours of playtime for me