A lot of work is happening behind the scenes on things like learning record stores (LRS) and activity records. This report on xAPI adoption gives readers a sense of that work. That said, it's still early days. xAPI's growth, while better than linear, isn't exactly exponential yet. For many providers, SCORM provides enough data for now. And as the report notes, "there are still features that remain underutilized. Two main areas for the xAPI community to focus on improving are xAPI Profiles and xAPI statement signing."