Supposedly before WES which is the second week in May. But it was supposed to be out in one form or another for the last 6 months.

No, it won't cost you anything. You'll see the topic at the top of this forum with about 100 replies in the first 10 minutes once its released. You'll have instructions, how to get the missing themes and everything else posted in the same topic. Everyone is waiting for the same thing so it will be widely known once its out.