@memele Similar to Netflix, we at JNC want everything to be available as long as possible, but the ultimate decision rests in the original publishers', authors', and illustrators' hands. As this has to do with licensing, it is possible for us to be asked to remove series from the library without being able to give any notice.
However, these were negotiated thoroughly with all rights holders' understanding of what's going on, so I believe it would be unlikely for that to happen out of the blue. For the purposes of reading priority, there should be no need to choose one series over another for fear of it being removed, and if something does need to be removed in the future, we should be able to give advance notice.