Its a shame that game displays only the most current version of the main menu background artwork.
It would be a nice feature to have an option of rotation of said background (or random selection) from the list of available backgrounds (base game, lindwurm, B&E, WotN, BD).
+ its a way sell more artwork in the from of screens (for example display is based on origin from the most recent savegame file)
+ its a way to get artworks in from the community via modding in entries to said list.