Since we now have a looks system for saving presets for avatar accessories, it would be an excellent opportunity to extend this feature to cover the much-requested feature of saving avatar parameter presets.
As an example: Editing a look should show the avatar in it current state (instead of the default as it does now) or perhaps there should be a button to sync the state to match how it is in game. Saving the look should save all saved parameters to the look. And loading a look should restore all saved parameters to those saved values, along with the attached accessories.
This would also solve the issue of default-disabled transforms not showing up in the looks editor.
This would be a big boon especially to marketplace avatars, who currently have to implement complex animator systems to provide save slots.