Season 2 DVD special features - and what would you want?

I've watched all the special features from the Season 2 set (except for the easter eggs, which I understand exist, but I haven't found them yet). My overall thought is that they're very good but just too short.

The selection of people interviewed for the set is great, both in terms of actors and crew members. But why cut the interviews so short? Surely these people have more to say about being part of such a groundbreaking series.

Perhaps, though, more material from those interviews will appear on the rumored full-series box set.

Which brings me to a little poll of sorts: If a box set containing the entire series does get released, what special features would you like to see on it that the previous two season box sets don't have? Post your answer in a comment.