The Samsung Galaxy Note 10 Plus' successor is currently thought to actually be called the Note 20 Ultra. This may be due to renders that have given it an extra-large camera hump like that of the pre-existing S20 variant of this name. A Twitter leaker's new "case photos" lends this idea more weight.
https://www.notebookcheck.net/A-new-Galaxy-Note-20-Plus-case-leak-may-improve-the-odds-of-its-being-another-Ultra.477069.0.html