The in-app links (evernote:///view/...) will continue to work
Of course, they will open in the Evernote app - I won't be deleting the app for a long time
The web links will continue to work
Of course, they will opening at the Evernote web site - I won't be deleting by data or account for a long time
The links also contain the Evernote note-id (..../ce781d76-f738-4ae6-8cc5-23c9315ae785)
Using a script on my Mac, I have note-id appended to the note-contents
I can locate notes using a text search