Finally... I have waiting for this one. The second season stopped around the point where Riboku was building a coalition to go to war with Qin. So this season could cover one of the best arc in the manga: the coalition war arc.
If there isn't a change in studios and it is done by the Studio Pierrot(Studio clown in english and quite fitting for this abomination of a studio) it will be shit.
And even the VA choice was bad in the first two seasons..
But it will clearly sell to the Japanese suckers,just like One Piece anime does...