> Time is on their side also since the story in the last books takes place decades after.

That's kind of the problem, they aren't going to recast, and just putting everyone in old age makeup would look bad. It isn't just a small time jump either, it's 30 years. Plus with the scandal around Cas Anvar (Alex Kamal) and how they killed his character off rather than recast, it kind of puts a wrinkle in matching things up with the books going forward.

I think they picked a perfect place to end the show naturally, and on a high note.