Box Relay Workflow API Outcome Status and Dates

I am using the Box Relay Workflow API to list all workflows.  It works great but it seems to be missing any data related to Outcome status and dates.  For example, what outcome step is the workflow currently on, when did that step become active, when did prior steps get completed, and is the overall workflow status in progress or completed.  Checking to see if I missing something or if this data will be added at some future date.