I'd love to see all quests give out some dust. It's always sweet during the festivals when they give out dust equal to gold, but even if it's less than that, half the gold value in dust, that'd be really great. It'd be a way to craft new cards without having to destroy old ones.
Maybe the dust could be inverse compared to the gold. 40g 60 dust quests, or 60g 30 dust quests.
Mate, you get 4 commons and a rare in a pack, you can't even craft a common card with 30 dust, who the hell would want that? Dust is immensely less valuable than gold due to how greedy hs is when it comes to crafting anything, 60g quest equivalent should be 100 dust, not bloody 30.
Not that it matters since they'll remove all quests in a couple of months but still.