There are more leaked images out now revealing more of the new Tau (mobile) Tidewall Rampart. Check out the guns, and the energy wall. Very nice looking fortification.
via Gametrust
http://www.gamestrust.de/tabletop/news,warhammer-40-000-sternenreich-tau-bilder-wd-90-operation-ghostkeel-tidewall-rampart,id46463.html
The Full Gallery of Images are here
http://www.gamestrust.de/bilder,list1263,1,warhammer-40-000-sternenreich-tau.html
More pictures here from previous leaks.
http://www.gamestrust.de/news,warhammer-40-000-sternenreich-tau-bilder-wd-90-leaks-tidewall-rampart-fire-warriors,id46407.html