I listened to Jason Do's medley (good--I've never heard the original Four Feathers score, though the Spirit part was great) and I got the thought:
What if there was a collab between Zimmer and James Horner to score a movie directed by James Cameron? Since Horner scored Titanic and Avatar and you, Zimmer, are among my favorite composers, I think it would be a good idea. (Can somebody say BLOCKBUSTER?)
If Zimmer himself reads this, (1) thanks for your awesome movie scores and (2) Please think about a collab with Horner.
Keep up the amazing work!