I don't have to talk about the state of the current server populations. Here is the plan though, for EU and NA:
The year of mercy: Unbans.
Unban all the people who have been perma-banned, and message them that they are free. This will give us a good shot in the arm, and bring back some favorite players.
What about all the trolls and really bad guys? Two points:
1.) I don't think dozens and dozens of people will respond to this freedom, so it's not a big issue. We're talking a handful that will probably respond.
2.) The real ass trolls, if there are any, will sort themselves out quickly and be re-banned anyways.
Final Question to ask yourselves for those who doubt:
At this point, what do we have to lose?