24 Frames notes that Miller and Lord won't be returning to direct, with plans to bring in somebody who helped in a smaller capacity on the first film. That means somebody we've never heard of, which is fine since most never knew Miller and Lord three years ago. The most interesting thing is who will be writing it, John Francis Daley and Jonathan Goldstein, who just wrote the very R-rated comedy, Horrible Bosses.
The duo will be expected to come up with their own story this time around, rather than utilizing Ron and Judi Barrett's sequel novelization. I was surprisingly pleased by how good Horrible Bosses was, but children's movies are a whole different ballpark.