No, as much as I'd love to read them, too, J.K.Rowling has no plans to sell the book; she made only seven copies ... six were given to her dearest family members and friends, and one was auctioned away.
I don't think she has any plans...yet. But you can keep checking her website, jkrowling.com, or mugglenet.com for updates. They would surely know if she were.