Well I think the picture speaks for itself. Tau will be out very soon.
I only just saw this pic with a note about Fire Warriors being redone. I'm going to dig around for more info, and will update this post when I find out more.
[Update] Well there is more information, the original source of the pics is: http://war-of-sigmar.herokuapp.com/bloggings/207
and there are further pics, below are a few showcasing the new Stealth Command Suit (which looks to be between the size of a command suit and a riptide) as well as the new fire warriors. What looks like new crisis suits can be seen in close up pictures of the Visions front and back cover; they seem very simular but appear to have a seperate groin and torso allowing more dynamic posing.
The fire warriors look simular, basically slightly different helmets and moe poses. However it's interesting that they all have pulse carbines, could this mean the rules for pulse carbines have improved to make them challenge the mighty pulse rifle. I bet the pulse carbine armed fire warriors will come with EMP grenades as standard for free (pure conjecture here). An improvement for pulse carbines could make gundrones and pirahas (which come with 2 free drones) very good, because they offset the pulse carbines lack of range with better mobility.
We only have to wait just over a month to get the codex and see for ourselves :)
Rathstar
Now how do I make room in my already very large and heavy Tau case for two extra suits :)