Great job as always Vader! I'm especially excited for the final installment of The Hobbit. Jackson has done such a phenomenal job of bringing a cherished series of mine to life. When I first learned that the Lord of the Rings trilogy was being made into films, I was skeptical of how it would turn out, because each reader has his own vision of Tolkien's world and its many characters. Jackson did not disappoint in his vision, for me at least.
There is a chance that we could be brought back to Middle Earth if they get the rights to his other works. The Silmarillion could work, though it would be difficult. The scope is so broad and the rights are owned by Tolkien's family and they are not looking to have that discussion at this time. It also wasn't written entirely by J.R.R. so there's that issue as well. I sincerely hope that no one attempts to remake these trilogies, at least not until a good amount of time has passed (many decades).