How to Train Your Dragon? or Kung Fu Panda are Universal's best properties for a DreamWorks land. They are both relatively current compared to the rest of their lineup, have been well received by critics and audiences alike, and have towns and such that can easily translate to a land.
Also, apparently DreamWorks made a Sinbad movie a while back. Could they make a bad show even worse with this tie in? Likely not but its fun to think about.