I have posted an announcement in the Moodle “General plugins” forum, and more discussion can happen there. There will also be tracker items set up in the Moodle tracker to get feature and improvement requests, and deal with bugs.
You can get the plugins from the Moodle plugins database as follows:
- OneNote set of plugins.
- Office365 for Business set of plugins.
- Oembed filter. It may still be out of date, but will be updated shortly.