Short answer is: The 2.0 release won't natively support automated failover, although you can build around using PG tools like physical replication + Patroni. But these capabilities are certainly things we are working on.

Per the PR notes:

  The current implementation has many more limitations 
  that will be addressed over time:

  - HA and replication has to be managed node-by-node. 
    This will be improved with native replication.