Update: This issue has been fixed. Realtime data and smart insights should be back now. View counts for the affected videos have been restored. Thanks for your reports!https://twitter.com/TeamYouTube/status/1159885087636246534 …
Sorry to hear you've been waiting so long. Unfortunately, our team doesn't have specific timelines for individual channels (thanks for understanding). Hopefully you don't have to wait too much longer for your update.