as for the hack issues, I'm fairly certain they have worked on it. Throughout the course of CB2 i only encountered a hacker maybe 3 times.
Also, with the amount of time between cb2 and cb3, i believe they worked on a good deal more than just guild wars or whatever they had mentioned.
I'm really looking forward to the next phase. Most game companies probably wouldnt bother with a cb3 because it just delays the open of cash shop, so i really hope that this is a sign of whats to come from ndoors with wonderking