Right now Elementalist is the most diverse profession. Because of this we already struggle keeping him in line with the other professions from a power balance standpoint. A second weapon set would exacerbate this problem as well as making him a profession which has a matrix of stances to go between, which I believe is too complicated for casual players. Are these things you would like to do on a certain weapon that you feel are lacking. I think addressing it that way is the best solution for the Ele.