the PotterMore developers are now recording the
audio effects for the second PotterMore "book",
"Harry Potter and the Chamber of Secrets",
an interactive experience based off of the HP book
of the same name.
Here is the official announcement:
"Chamber of Secrets update:
This week, we're in the sound studio recording audio for the
Chamber of Secrets Moments. We're also working on Chapter Three, The Burrow,
and Chapter Seventeen, The Heir of Slytherin."
It was announced recently that the PotterMore team was underway with production on the second "book", but this is the first official piece of news concerning the actual product.
As of now, no release date or other indication of when Chamber of Secrets will become available to PotterMore users, or if PotterMore will launch a beta version first,
as they did with PotterMore itself before its worldwide launch.