Today I called ancestry about a technical issue (messages to my matches are not being sent today) and asked about the raw data as a side note.
There isn't a release date yet. I was told that ancestry is working hard to find the best approach. While we'd all love to know when the data will be available, I do agree that it's critical to get it right before it's released.
Some new reporting features (not described to me) will be released in mid March.