The ability to rename a Hosted Feature Layer created with Velocity would be useful. Per a recent support case, "ArcGIS Velocity does not support changing the output feature layer name once the output has been created. You can either keep the existing output name or create a new feature layer output with the desired name."
This is a limitation and will create extra work for users using the output in Web maps. For example, I created a Layer called "TEST" and configured an ArcGIS Online (AGO) map with custom popups, field aliases, labels and symbology using the layer. I now want to move my AGO content to production and remove "TEST" from the Analytic Output and Feature Layer name. I can rename the label/title in the Analytic and the Item in AGO, but the underlying REST endpoint is hard coded with the original name.