"... we will be retiring the Mozilla Backpack and helping users migrate to Concentric Sky’s free and open Badgr platform."
Entire article from Mozilla: https://medium.com/read-write-participate/an-update-on-badges-and-backpack-5a06fab252ea
If you are like me and already have badges in Backpack you might not have heard about this yet. So far, I don't think they've distributed any documentation on how to migrate or merge from Open Badges to Badgr. But there is a 53-minute recording of a session Getting Started with Badgr in Canvas - YouTube from August 15, 2018, by Concentric Sky.
Also, if you're wondering which badges platform to use in your courses this might help in the decision.