After some careful deliberation Blizzard decided against rolling back servers as "relatively few players used" the gold duping, and they're "able to successfully identify" exploiters.
Rolling back would mean everyone who has played since 1.0.8 launched would lose all their progress, and naturally that would enrage the vast majority who did no wrong.
"At this time (and after careful consideration), we've decided to not move forward with rolling back the servers," a Blizzard community manager on the Battle.net forums. "We feel that this is the best course of action given the nature of the dupe, how relatively few players used it, and the fact that its effects were fairly limited within the region."
"We've been able to successfully identify players who duplicated gold by using this specific bug, and are focusing on these accounts to make corrections. While this is a time-consuming and very detailed process, we believe it's the most appropriate choice given the circumstances."
"We know that some of you may disagree, but we feel that performing a full rollback would impact the community in an even greater way, as it would require significant downtime as well as revert the progress legitimate players have made since patch 1.0.8 was released this morning."
Temporary suspensions and possible bans could await those who exploited this gold duping situation. Both the gold and real-money Auction Houses were brought offline, with Diablo III plunged into 'maintenance' to fix the exploit.
Diablo III is currently in development for PS3 and PS4 with no release date offered.