User blog comment:High King Ithilion/Amazon To Produce a Lord of the Rings Series/@comment-32865299-20171114133748

I beleive all we can do is hope they do not stray completely from canon/lore. It did say before FotR so it could be aabout Aragons journeys (Transporting Gollum, Going to Rhun/Far Harad etc) or it could be about the fall of numenor. This is assuming they stay canon friendly. If they do not, It's safe to say that they will be making their own lore.