I'm guessing they still really haven't decided how it will be set up. Hopefully they aren't going to charge for non-public playerworlds. That's pretty ridiculous since who would go out of their way to pay money to work.
I mean it's a struggle making a playerworld as it is, I don't want to have to pay monthly just for me and one other person to have access to an npcserver.
I agree with charging for public pw's though. I feel they should charge the public pw's monthly and allow the pw's to also turn a profit of some kind. You can't turn profit with a private pw. There needs to be some reason for people to invest not only time, but money as well, into a project that is making someone else money.