Specialist games is gone, the whole range is gone, whatever they have left are whatever tehy had a lot of stock of (Bloodbowl is safe theough I believe due to the PC game).
Basically they were never going to re-do all those old models in Failcast so they pulled the ranges instead.
DO NOT hold your breath about a re-launch, the current model for GW is one un-supported game every couple of years (e.g. Space Hulk, Dreadfleet).
So basically it's gone and it's gone for good.