1.10 heads up

[NatNit]

I don't doubt that hacks will appear on ladder chars, but Blizzard made a powerful new option to deal with some of it, and I hope to see warnings and info about if you are caught cheating all your chars will be removed from the ladder, we apologize in advance for any mistakes that are made in this regard, but we want to keep this portion of the realms clean.  Play at your own risk.  At least you wouldn't completely lose the char, you could still play them as a non ladder char.

So, the way you put it, there would be three types of realms available after 1.10: Open, closed, and the closed closed (ladder).