Nice little blurb on the Telltale blog, too
On December 19th, in between the end of the sneek peek, and the start of the actual storyline on GameTap, there's a
Town Hall with the D'ni Restoration Council on the D'mala shard.
RAWA of Cyan also suggests that even if you're not interested in the Town Hall, it'll be well worth your time to be in D'ni while it's happening.