Are there any plans to develop NADA to support a fully DDI-based solution for both study-level and variable-level metadata, (e.g., Lifecycle, or perhaps the forthcoming CDI standard)?

I've been discussing with an organization that is looking to adopt a more comprehensive metadata solution. Given the content they oversee, a more pure social science metadata paradigm would probably be ideal for them. NADA still seems promising as one of the best options for them right now, but as they're growing they're trying to think carefully about future directions as well.