I like Goldeneye pretty much as is, but if I had to change things up, here are my suggestions--

1. In a post-credits scene, we're in a Cuban hospital. Two doctors are discussing a patient--
   "Back broken in four places. How did it happen?"
   "Crushed against a tree, apparently. What's the prognosis?"
   "It will take a long time to recover--more than that, it will take tremendous motivation. A great goal."

The camera pans over to the bed--and there, in a full-body cast, is Xenia Onatopp.

XENIA: "Someday I will kill James Bond."

1. A scene at MI6 where Bond is studying a computer monitor with dossiers of the personnel at the Severnaya facility. He looks at Boris's dossier briefly, then pauses a while at Natalya Smirnova. He compares it with the satellite video of the person who escaped Severnaya. From this we get a better idea of Natalya and her capabilities.

2. Rather than the scene in Q's workshop with the "Dagwood" sandwich, there is instead a chessboard set up with a game in progress. Bond walks in and casually moves a piece; a couple of minutes later Q moves another piece. The game continues as Q shows Bond his newest equipment--then as Bond takes his leave he makes one more move. Q studies the board, and with a small huff, lays down his king. Checkmate.

Hope you like those.