The only reason new articles are not being uploaded is that the judge ordered it. During the case, one of the orders didn’t contain the text for the parties to continue on the agreement and on that day sci-hub uploaded all the accumulated requests (2018-2020~). My guess is that whenever this case is closed, be it as a lose or as a win, sci-hub will resume uploading new articles.
If you happen to have access to a book or scientific paper not in libgen, please contribute back https://forum.mhut.org/viewtopic.php?p=9000