Right now the stories about the Note series of phone's being discontinued by Samsung is conjecture and rumours.
Some sites say they might be doing this to concentrate on the new concept of foldable phone's.
And merge the Samsung Galaxy s series with the Note series with the Note 21 being the last Note phone, but this is speculation at this stage @carlmalin
I haven't seen anything official from Samsung.
If it does happen I hope the s-pen remains with the option to house it inside the phone as I'm not keen on carrying around a separate pen which can be lost or damaged.
So personally I'm keeping an open mind and hoping for the best.
In regards to updates which I'm meaning software updates and Security updates my N20 Ultra Snapdragon version is on the November update so that's currently the latest and it'll receive the Android 11 & Samsung One Ui 3.0 probably in January 21.
The phone will receive updates for 3 years.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help.