I would change 2-3 things..

[snake665]

Adding houses would be impossible, with so many players, it would take the whole world(of warcraft). It would be really cool to make a system to create your own weapons or armor or change old ones parts..i mean, u choose the way it looks, completely! Most people playing WoW are wearing armors they dont like, just cuz theyre stronger than other, stylish ones..This is the problem of most mmorpgs, but some1 has to make a start. Alliance-Horde balance should be fixed, too. And a dance-as-u-like system too,which will allow u to become better at dancing, cooler,and would create dancing contests with big prizes :shock:

 

[AxlIdiot]

Yes the dancing needs to be better >_<
1)Tauren ladies cant dance
2)Forsaken ladies cant dance.
3)NE ladies cant danceo)
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About the creating armor and weapon stuff:That would just be imbalanced and not altered.