1. If you live in Germany, Austria or Switzerland, then you can check out in which cinemas they will screen the live stream on this site: www.wagner-im-kino.de, the ticket costs about 30 euro.
2. Only for Germany: www.br.de/radio/br-klassik/themen/bayreuther-festspiele-br-sendungen100.html - the good news is, if I'm not mistaken, the internet live stream would still be available until the end of this year.
3. It would be really difficult for international audience to see this live stream, but usually "someone" will 'leak' the recording on Youtube. I guess, it's your best shot. For now.
If you decide to join the live stream of this production, I'm sure you won't regret it. I heard the premiere live through BR Klassik (audio only) and was very satisfied with Thielemann's conducting. Further review after I watch the live stream in cinema on Friday.
Beside the video live stream, BR Klassik also broadcast the live recordings of all seven Bayreuther opera productions in surround - freshly recorded this summer with the actual cast. Please go to their website for further details on the schedule.