The data in the timeline already exists (flagging reason, who flagged, etc.), so that will continue to be available in the same places. For the notes, I’m not sure about their availability in Data Explorer at this stage, but I’ll find out and circle back here.
The current data shown for flagging reasons will still be shown in the timeline view, so the new UI won’t remove any data you previously had access to.
I’m glad you like it! We’ve already found this interface to hugely improve our own moderation experience on Meta, so we’re confident it will do the same for everyone else.
That’s a possibility, although not one we’ve actively considered at this stage. Only admins and moderators should have access to the review queue, so I suppose a setting like this would allow you to be more granular with who is allowed to do something like that. We’ll give it some thought!