Simple and straightforward suggestion: Allow shaman class to wield swords.
In vanilla and expansions that followed shaman class for some mysterious reason was denied to wield swords, some people might claim its because of lore reasons but lore doesnt state shamans and swords are contradictory and that loose lore argument doesnt make sense considering other classes having wierd weapon options like Warriors using staves, Paladins using axes, Rogues using maces etc.
This feature would not have negative impact on the game itself or other classes since it wouldnt in any way nerf or damage them, if anyone has strong arguments on why this suggestion is bad post them but please refrain from using the "Blizzlike" buzzword because Blizzard itself has made many mistakes in both vanilla and other expansions which didnt make sense.
For the end is example of shaman wielding swords ingame http://imgur.com/WW3kaoV