Hi,
the goal here is to create a new persistence record which match with the reverse connection.
We should play with different commands added on 13.1 to create that persistence record.
Basically you should enable MR::ignore_peer_port "true" (as the new source port should be ignored to match the persistence record) but still we have some persistence fields that will not match.
So MR::connect_back_port 3868 will help you (as the server side will connect to a new VS) and MR::equivalent_transport config outbound_tc will match the profile used.
you may need also MR::message route config to finish the MRF bidireccional persistence.
Best regards.