The new SWADE edition of Mythic is now available at DriveThruRPG here: https://www.drivethrurpg.com/product/279812/Mythic-SWADE-Edition
This new version of Mythic combines everything from the core book and the Ennam and Saduri expansion into a single book, all updated to the new SWADE version of Savage Worlds.
If you already own a copy of one of the older versions of Mythic there are bundle deals available that allow you to upgrade to the SWADE version for 30% off.
If you own the original version: https://www.drivethrurpg.com/product/283772/Mythic-SWADE-update-BUNDLE
If you own the revised version: https://www.drivethrurpg.com/product/279810/Mythic-SWADE-update-BUNDLE