It sounds great so far, but we don't have any real details about what exactly will be included in the event. I think for a lot of people this is the content that will make or break their loyalty to the game. If Cryptic can prove that they are able to put out regular quality content then I can see the game having some descent staying power. If not then it will be a flash in the pan.

BTW, the new content added in yesterdays patch are repeatable daily. Each of the three instances has three missions, so nine total. Not bad for something they whipped up in a couple weeks while simultaneously working on the Blood Moon content.