Will the music be changed or will it stay the same? GoldenZen made a remix of the full n64 theme a while back and even some gunbarrel rescores for his Goldeneye Rescore project, they sound a bit more James Bond-y than the current one which sounds more like Halo (not a bad thing, but there aren't that many Halo-ish sounding songs in the mod itself).
What I think would be cool, is if there could be alternate versions of the intro that play when you start the game, like with different music similar to how the maps always randomly pick one of it's available songs (unless there's only one available option by default like Bunker Classic) and maybe even different pistol noises. I don't know if that is possible but if it is I feel like that'd be a cool touch...the getting multiple intros that plays randomly upon startup.