ADS-B-Out is a welcome advance in aviation and will surely provide benefit, but, as Dave suggests, there are still BIG issues re bandwidth when we are talking about real-time streaming of all CVR-FDR datapoints for all commercial aircraft.
Just as importantly (IMO) is the ongoing discussion of the intent of CVRs and FDRs. Adequately protecting the privacy of the information (especially from CVR) and ensuring it is used solely for its intended purpose (official accident investigation to ascertain cause and contributors) is problematic with streaming.