The next expansion to Dungeons & Dragons Online was set to be released on April 30th. However, a new note on the official DDO forums has announced that the Masterminds of Sharn expansion will be delayed until May 14th. The team felt that there were "several things we want to do yet, based in part on your feedback from Lamannia".
Hello! We're writing to update you on our release date for the Masterminds of Sharn expansion. In recent days, as we've neared our original April 30th date, we've been looking at several things we want to do yet, based in part on your feedback from Lamannia, and so we have decided to take a bit more time for final bug fixing and polish work. Our new release date for the Masterminds of Sharn expansion is now May 14th. Thank you!
Masterminds of Sharn will include the new Tiefling race, the Tiefling Scoundrel, the Inquisitive universal enhancement tree as well as a number of other bug fixes and feature enhancements.
Check it out at the link above.