Yep, you've read it right. There will be an upcoming web comic for Wizards entitled "The Seeker's Fall", which will be released next Tuesday. That will be on January 20, 2009. They already placed a thread reserved for the discussion of part one of that web comic in the Wizards Community forum. See it here.
As based on the title, the story I guess will focus on Tezzeret's search for power and discovering the secrets of the Etherium citizens of the Esper shard. I'm not sure though if this is related to the people that hired Jace Beleren to retrieve the artifact that Chandra stole. We'll just see on Tuesday.
Till next post... :)