Originally Posted by IGN Article
..."Finally, the story will lead Lara to the Himalayas, where a deeper, more personal part of Lara's story is revealed. (If you have followed the series, you'd know that a part of her story -- that part that made Lara Croft who she is today -- takes place in the Himalayas). So that should be interesting. Also, unlike the other games, when you beat a level, you'll see a stat screen to see how you did, but also to upgrade weapons, unlock several vaults worth of unlockables, including many alternative costumes and neat-o items."
This article makes it sound like the Himalaya level is at the end of the game.
Wonder what those "neat-o items" are.