From their Facebook page:
We are aware of the great excitement and expectation that the Harry Potter Miniatures
Adventure Game is generating, and believe that this is the best way to ensure our product
reaches the greatest number of customers, with the fulfilment guarantee provided by our own channels.
Pre-orders for the Harry Potter Miniatures Adventure Game will start on March 14
Edited to link to the Knight Models page instead of just their Facebook page, as well as update the quote.