No GoldenEye For Xbox Live
Joystiq reports that, as revealed on a recent VGM podcast, GoldenEye is not likely coming to Xbox Live anytime soon. From the article: "I would say is that as far as I know we don't have plans to bring those types of games on Xbox Live Arcade ... Some of the games that were ... on the N64, those games were pretty large and are still gonna be pretty hard to distribute digitally depending on the title."
It doesn't matter who owns Rare. The games that were published by Nintendo are (partly) retained by Nintendo. That includes the games I listed above - which for the most part are Rare's most popular games.
Some games, such as Conker and Jet Force Gemini, were published by Rare. This is why M$ gets full rights to these games.
The flip side is that Nintendo can't release those Rare games either. They will only exist "as-is" unless more negotiations take place. I doubt any of the parties will bend on this.