As a wushu practitioner I was expecting i could talk to others about the art in the Kung Fu board. Unfortunatly it seemed it was all Wing Chun with some different kung fu styles on the side. I would suggest making a wing chun board, because almost all of the Kung Fu posters are practicing Wing Chun, and if there are enough Wushu guys (I would not sugget making a board just for me ) that you make a wushu board.
I do believe it has been asked for previously. I think the current standing is this: if theres enough demand, and the staff think it is a good idea, it would be considered. However, there is also the chance that if it got the nod, people would all want a board for their style, such as Wado-ryu, Shotokan, ****o-ryu etc, and the discussion would simply get too split up. However, YODA may like to correct me if I'm wrong EDIT: here is a previous discussion about it