Netflix had planned 7 seasons of witcher. But are cancelling it after 5 seasons.
It got a lot of viewership when it premiered. But fans soon started to see that the showrunners did not care about the source material at all and wanted to tell their own stories and agendas. And by season 3 witcher fans had had enough. Even henry cavill who is a big fan decided to leave one of his dream roles as he saw the show heading in a disgusting direction.
In case of RoP :
Most Fans dislike the show in the first season itself. And have realised the showrunners don’t really care about Tolkien’s writing. And only want to use his fame to tell their own original stories (which are terrible imo).
Moreover, one of the best performances from season 1 (Adar) has already quit the show after season 1 itself. Under suspicious circumstances. (Im sure he was aware that he will have to commit for more than one season even before signing for s1, so him leaving abruptly after fan reaction is very suspicious)
All the leaks and reveals so far for s2 have pointed that showrunners are arrogant and haven’t bothered correcting things and learning from mistakes. Instead they are doing more of the same as S1.
I’m guessing we’ll see it cancelled after 3-4 seasons if fans continue to call it a shitshow and viewership continues to drop. More major actors will leave if fans continue to hate on the show and if they get no fame or awards. (Hotd and shogun cast are getting so much love from fandoms as the shows were amazing) . At the very least, we’ll see amazon slashing the budgets considerably for future seasons.