Will Arnett spoke with Business Insider about the upcoming season of Arrested Development, and confirmed that the series will be structured more like the first three seasons:

This time around, not only is the whole cast returning (“sadly, Jason Bateman has agreed to do it,” jokes Arnett), but Arnett tells us that the show will be structured in a way that’s similar to the original seasons. That means the cast will be appearing together and sharing more scenes, he hints, as opposed to season 4, which focused on one or two characters per episode.