I was cruising the blogosphere early today as I am home sick and I found this, rather unfortunate set of news; http://natfka.blogspot.com/2011/12/tau-crisis-and-battle-suits-not-to-get.html
Assuming the rumor is true, it contradicts earlier rumors about new Crisis Suits, yet it seems to consistent with Gw's model. Very rarely do they completely redesign a plastic kit, instead they re-work the sprue to add more options, such as was done for the Ork Boyz sprue, and Space Marine kits like the Tactical Squad and Assault Marine set. Most likely what they have done is add the Broadside weapons, in plastic, to the basic Crisis Suit kit.
Yet it's only a rumor, so here's hoping that there is a new Crisis/Broadside kit altogether.