For users of multiple devices, it could be very convenient to have the same favorites, folders and conversations available on all devices. This would require a sync function, or saving the conversations, folder data and most of the settings in a project file.
The latter option (project file) would only be an alternative idea if a sync function is too much work for the current state. Then the user himself can simply save the project file on his own cloud share/drive.
Once a project file is defined, MindMac could check automatically for changes or update the project file when some are done.
This is fore sure, a bigger feature, so no stress, just for road-map documentation. ;D
Suggested by Sascha