Lord of the Rings, but as an open world game similar to Skyrim and with the entire map of Arda as explorable. All of it! Including Harad and Rhûn. Make it, for the love of God! Take my idea and make your billions, I don't care, just let me FUCKING PLAY!!!
I would LOVE this. Especially if the war of the ring or other plot was on-going and you could participate as you pleased, potentially shifting the balance one way or the other. The idea of an open world RPG where the world exists and evolves with or without you is my dream. Mount and Blade is almost that, but for being too army/strategy/overworld focused, and the lord of the rings mod for warband had me hooked for a long time before the limitations got to me
Especially if the war of the ring or other plot was on-going and you could participate as you pleased, potentially shifting the balance one way or the other.
That is actually a really cool idea if it can be done well! Not a new member of the Fellowship or anything too directly cheesy, but somehow get pulled into a quest to help at Helm's Deep and then Pelennor or something. Or you can get connected to help Sauron through quests in Harad or Rhûn. Likewise, it would be cool to potentially help revolutionary movements in Harad or Rhûn that oppose Sauron.