Yep, this is on the near-term roadmap. Mozilla will be changing the Persona-based login system as that platform moves to end-of-life, and there's an opportunity to make some other needed modifications. Mozilla will be working with developers from DigitalMe and the community to make this necessary change. The badges ecosystem should correspond to how people live and work, and that means recognizing that identities (people and organizations) have multiple identifiers (email addresses, etc.)
Nate Otto
Interim Director, Badge Alliance