Extensive changes to reward. While I might not play Season 2, or D4 ever again, I can recognize this is a lot more than people expected out of Season 2.
The fire must be lit under their ass.
Season 2 is a complete NGE in terms of reward scaling.
If they added a new currency system or two, plus changing how Enchanting works, I'd probably be sold on a future season given the start of these changes in Season 2.
They keep going in this direction, with Season 3 and 4, and this game might eventually get holdouts back into the game earlier than expected before any DLC hype or expansion talk.
This was unexpected from Blizzard.