Whole bunch of stuff there which is on the todo list.
Our setup already uses the Barney data, heavily refactored into a more rigid database structure. The Barney data has an unfortunate issue where both "characters" and "series" are technically the same thing, with no way to effectively differentiate between the two.
I've tried some automated separation of characters and series, and we had the 2000ad guys attempt to mark up which are which, but theres still plenty of overlap and missing items.
These are just things that are going to need to be fixed as time goes on, extras added and some community input taken. We're still in the process of trying to convert all the Barney data into the new structure, and this is why we're missing Graphic Novels, Reprints, etc.