vSphere Replication has undergone some major enhancements in this release. The now Enhanced vSphere Replication includes automated load balancing and scaling to achieve higher performance, and when enabled with VMware Live Recovery provides a 1 minute RPO.
Traditional vSphere Replication routes traffic to the replication appliance at the target site. With Enhanced vSphere Replication, replication traffic goes directly to the host at the target site, bypassing the replication appliance while supporting backward compatibility at the same time supporting a more optimized data path allowing for increased simplicity, automatic scalability and automatic load balancing.
This release of vSphere Replication supports both versions of the data paths, while the next release will deprecate the traditional vSphere Replication data path and replication through the appliance in favor of Enhanced vSphere Replication. Switching over is simple and easy, and non-disruptive with details included in the documentation. See How do I reconfigure existing replications to use vSphere Replication with enhanced replication capabilities.
This is part of Enhanced vSphere Replication logging that has no bearing or impact on legacy replications. Legacy replications won't be rebalanced. Enhanced replication distributes the replications on all available hosts in the target cluster. Re-balancing of the workload occurs automatically every 30 minutes.