Just reading through all the posts being shared before and after the rollback, something is really striking.
First, all most people cared about in the long list of library compensation was the gems. All the old currencies have become worthless. Nobody cares. So think about retiring some of them, and making the game smoother. And maybe stop adding worthless short-term currencies, like war coins, if you aren’t gonna keep supporting them
But more importantly, everyone is talking about time spent playing this game as WORK.
No-one is saying “I lost hours of play”, everyone is saying “I lost hours of work”.
People who talk about your game as work are already getting fed up with it. People are on the verge of cracking. And large-scale fusterclucks like the rollback are not helping.
You need to make the game less like work and more like fun. And that should be your number one priority, after you sort all this mess out and compensate players properly.
Make this game fun again.