Well apart from the fact that people have said at evry Games Day for the past few years no armies are getting squatted and SoB will get a new book eventually.
I still remember someone coming out with a rumour claiming they had been told 'by GW high-ups' that Dark Eldar were indeed being squatted. Two days later leaked pictures of the new DE were leaked and a few days after that was the official reveal at Games Day.