SharePoint 2013: Multiple Content Hub and Multiple Managed Metadata Service on Cross Farm scenarios
Please find below the analysis details of Multiple Content Hubs and Multiple Managed metadata Service.
Can we have more than one Managed MetaData service assigned to a web application? Yes
Can we assign one “Managed MetaData service” and another one “Managed MetaData service proxy” to the same web application? Yes
Can we assign multiple content Hubs to a web application? Yes, by creating multiple managed metadata services.
Can we have the same content type name in two content Hubs and assign the same to a web application? Yes, However Sharepoint only takes one in case you have the same content Type names.