I thought about this topic and realized a few things about Aquila.
1. The Concept Art
The concept art at Kingsisle has to take a lot of work, my drawings take days so those must take some work. Any ways, do you think the concept artists will just spend hours for like seven drawings just for four zones? They have to use them again, think, did you see concept art for West of Grizzle? Exactly! If so I suggest they make is a longer side world, where you go to Medusa's Lair, Visit Pan, Airtimes, The three Fates (or Norns in Norse), Hermes, Aphrodite, and so on!