Earlier, it had been speculated that the update to the Galaxy Note series to be released later in 2019 would feature more than 1 version. Now, a Korean news agency claims that its sources have increased this potential number to 4. Samsung may be planning this deviation from the norm in order to accomodate the 5G-flagship trend that has already taken hold this year.
https://www.notebookcheck.net/Samsung-Galaxy-Note-10-now-rumored-to-come-in-4-different-variants.416159.0.html