Amazon's Lord of the Rings Series Will Break from J. R. R. Tolkien's Canon
esquire.com
esquire.com
My understanding is that Tolkien canon doesn’t have any stories big enough for a full show, though it does have lots of smaller tales scattered throughout history. So to make a show, they have to create a narrative within the context and setting of the world at that time. I think Tolkien paints a rich history, so there is a lot of existing world building to pull from to set the show within. I don’t think the change “hobbits exist in the world a few hundred years earlier” makes a negative impact — I think many will be excited to see hobbits in the show!
Side note: I think it’s interesting that Amazon is spending so much money on the show. I hope that means they know they need to “do it right” and not cut corners in order to attract the huge LOTR fanbase. I also find it interesting that they are contractually obligated to make five seasons.
But it provides just enough scraps to hang a story on. To tell that story, they'll have to be intimately familiar with the First and Third Ages, not for consistency of events but to understand the ethos and mindset of the people.