I read in NOME that talking was thinking on the fate of Aman after the change of the world.
He debated to himself if Aman was a physical entity or not (before the change of the world) and concluded that if it was physical it needed to be destroyed, and the Americas would be what Aman was. And Aman would only exist in memory.
Of course, they were only thoughts and I don't think Tolkien planned to get ahead with them, it would have meant changing everything, including the LOTR (e.g., where did Frodo and Bilbo go?, where did they Istari come from?) Also, it would look as a punishment to the elves and the Valar and it would have introduced a dark final to the story that don't believe Tolkien would have wanted.
I think Tolkien did try hard in the late years to make the Legendarium more "real" but he constantly hit a wall.
He debated to himself if Aman was a physical entity or not (before the change of the world) and concluded that if it was physical it needed to be destroyed, and the Americas would be what Aman was. And Aman would only exist in memory.
Of course, they were only thoughts and I don't think Tolkien planned to get ahead with them, it would have meant changing everything, including the LOTR (e.g., where did Frodo and Bilbo go?, where did they Istari come from?) Also, it would look as a punishment to the elves and the Valar and it would have introduced a dark final to the story that don't believe Tolkien would have wanted.
I think Tolkien did try hard in the late years to make the Legendarium more "real" but he constantly hit a wall.

