Anyone can make predictions and Tony's are interesting, if not controversial. He thinks 5D4 will be delayed until 2017 and have a 75M sensor. That's certainly different from the take here at CR. See his video:
http://www.photographybay.com/2016/06/14/canon-5d-mark-iv-6d-mark-ii-nikon-d820-sony-a9-more-predictions/?utm_campaign=shareaholic&utm_medium=email_this&utm_source=email
http://www.photographybay.com/2016/06/14/canon-5d-mark-iv-6d-mark-ii-nikon-d820-sony-a9-more-predictions/?utm_campaign=shareaholic&utm_medium=email_this&utm_source=email