https://www.cnet.com/news/galaxy-note-9-aug-9-launch-price-specs-features-samsung-s-pen-stylus-rumors/

Rumors are still a jumble at this point -- will the Note 9 have an underscreen fingerprint reader or won't it?! -- but what is certain is that the Galaxy Note 9 will need to progress beyond the already excellent Galaxy S9 and S9 Plus if it's going to. 

The juiciest rumor by far points straight at the Note's signature detail, the thing that makes it different and more powerful than any Galaxy S phone: the S Pen stylus. One leaker claims that theNote 9's S Pen is going to finally learn some skills that go beyond writing, drawing and navigation.