Julian Thomas, Pottermore's chief technical officer, recently commented on
J.K. Rowling's interactive website and how the team learned to accommodate for
the high traffic the website sought, using Microsoft's Azure as a cloud
provider, in a new report in The Seattle Times.
Thomas commented on how traffic on the site would spike once the second installment of the series, Chamber of Secrets, would open to the public, and noted that it would be "sometime this summer."
Do note that this summer ranges from anywhere from the end of June to all the way at the end of September, so it could be weeks to months away. We will have an actual opening date once Pottermore reveals it. The Pottermore Insider blog already announced that it is currently working on artwork for chapters of the book's moments on the site.
Thomas anticipates more such peaks occurring when new content is added: Such as when content for the second book in the series, "Harry Potter and the Chamber of Secrets," launches. Thomas did not give a specific date for that but said it would be sometime this summer.
Pottermore.com will also be translated into more languages, including "some Far Eastern languages that will be announced shortly," he said, and Pottermore will also appear on more mobile devices in all sorts of forms.