A couple of months ago, I submitted a
GitHub issue about standardizing the way standard licenses are configured in the Dataverse software. Currently, the way license information is configured and exposed to DataCite needs some changes to make it aligned with the recommendations from DataCite. I guess this might be of interest to many if not all Dataverse installations using dataset (and optionally file) DOIs provided by DataCite, so you might want to join the discussion on GitHub or by replying to this Google group discussion thread. Thanks!
Best, Philipp