Some previews for the upcoming Frozen 2 D+ series:
https://web.archive.org/web/20200515155504/https://whatsondisneyplus.com/into-the-unknown-making-frozen-2-episode-101-disney-preview/
http://web.archive.org/web/20200515155548/https://whatsondisneyplus.com/into-the-unknown-making-of-frozen-2-episode-102-disney-preview/
http://web.archive.org/web/20200515155611/https://whatsondisneyplus.com/into-the-unknown-making-of-frozen-2-episode-103-disney-preview/
And in case you missed it, a new short with a new song was posted recently on youtube:
https://youtu.be/evfOzPrzIu0
https://web.archive.org/web/20200515155504/https://whatsondisneyplus.com/into-the-unknown-making-frozen-2-episode-101-disney-preview/
http://web.archive.org/web/20200515155548/https://whatsondisneyplus.com/into-the-unknown-making-of-frozen-2-episode-102-disney-preview/
http://web.archive.org/web/20200515155611/https://whatsondisneyplus.com/into-the-unknown-making-of-frozen-2-episode-103-disney-preview/
And in case you missed it, a new short with a new song was posted recently on youtube:
https://youtu.be/evfOzPrzIu0