Some of you may remember being rounded up by me at Wellycon to playtest a fan expansion for 7 Wonders called Myths. It's now done, dusted and released - free to print and play - and has its own BGG entry here with all the files you need.
Those who did try it out at Wellycon had a great time so if you missed out then, now's your chance It has some similarities to Leaders (an extra drafting round, lots of unique cards with special abilities) but also includes a lot of the interactivity from Cities (diplomacy, cards affecting everyone at the table) and includes cards that work specifically for team play.
If you try it out, we'd love to hear about it. Thanks!
Disclaimer: I helped translate this into English, so I am a little biased in its favour