Has Blizzard revealed the amount of wings in upcoming adventures beforehand? I had an idea today about not buying anymore packs until I have enough gold to buy all the wings. But right now there's no way to know how many wings there will be. Naxx and BRM had 5, while LoE only had 4. Has Blizzard announced beforehand how many wings an adventure would contain, so when it comes I'll know how much gold I need? 