So far my list is:
1.) Changing 'Latin' to 'World'.
2.) Adding an 'Experimental' genre.
3.) Adding a 'Soundtrack' genre.
4.) Adding 'Solo Instrument'.
5.) Adding 'Fusion'.
@SourJovis I don't agree with adding Noise, Unavailable, Undefined, or Postmodern. The first can be thrown into Experimental if it's added, I don't see a problem with the second and third being thrown into Miscellaneous, and I can't see the fourth being used that much (even if it is used, it can still be categorised just fine in Experimental). However if many people are in favour of any of these genres being added then fair enough; I'll add them to the list.
@samulis Ethnic can go under World and Cinematic can go under Soundtrack, by the way. Or shall we change Soundtrack to Cinematic? In its strictest definition, soundtrack music is music made for games, movies, etc, rather than being its own genre, whereas cinematic music means having qualities of that kind of music, which makes more sense.