That is true that a lot of people worked on DD but I don't think that many people are going to be working on an expansion nor do I think they are going to churn out a sequel that quickly. Then again Capcom did say they want to put out sequels at shorter intervals...I remember reading that almost 600 people were working on DD...that included the DMC team and probably many others too.if they are working on the sequel a big number of people must be working on that plus on (the already announced) expansion for the original game.