music and sound
I personally really like the music of Master of Magic. Most of it is pretty relaxing and just flows well with the feeling of the game. However, it does suffer from (if you can call it suffering) is all midi music. Modern games can have so much more.
Civilizations IV, had amazing title screen music (the music to the sight of the globe, not any of the expansions) and Heroes of Might and Magic 5 had great castle music (specifically the music to the 'castle' did I love. I don't recall much of the rest of the music being that grand, however none of it was really poor either, unlike Civ 4 which did have some poor songs)
I'm also curious about sound effects. Its on the same topic, and part of what I wanted to bring up is customization. I mean, obviously our models are going to be customizable, but how will sound effects be handled? will sound be customizable too? and how is the quality check on that going to work? If it is customizable, might there be custom music sets as well?