https://www.techradar.com/news/samsung-galaxy-note-9-512gb-version-is-probably-coming-but-its-not-for-you

We're learning more and more about Samsung's Galaxy Note 9 phablet that's expected to launch later in the year, and the latest rumor suggests the phone may come with an extraordinary amount of storage.

Brochures in Korea confirmed there will be both 64GB and 256GB versions of the phone, much like the Samsung Galaxy Note 8, but it shows a 512GB version as well.