Nethaera tells us that the development is coming along really well, which we've all heard before. However in her typical witty fashion she also gives us this gem of a line, in response to people calling WotLK vapor-ware:
"The great thing about vapor is that at some point it condenses and becomes rain. The rain then falls and nourishes that which it falls on. It takes time for it to happen, but it does happen. Signs point to clouds forming in the sky, but you never can tell when they will let loose the rain..."
Take that for what you will, but I read it pretty squarely as "Some major WotLK news is on its way." And that is news in and of itself.