Elevate hidden replica to a voting member when quorum is lost for a Replica Set
The MongoDB engine should allow for hidden members in a replica set to be automatically elevated to a voting member. When quorum is lost and can't be met, the hidden replica is automatically reconfigured to a voting member to obtain quorum.
When the failed voting member comes back online and catches up the hidden replica is demoted back to a normal hidden member.
Makes it cost effective for users and will increase adoption of MongoDB.