https://www.themoscowtimes.com/2019/03/05/russia-will-be-one-third-muslim-in-15-years-chief-mufti-predicts-a64706

Around 30 percent of the Russian population will practice Islam within the next 15 years, Russia’s grand mufti has predicted, citing demographic trends.

Archpriest Dmitry Smirnov, an official in Russia’s Orthodox Church, agreed with Gainutdin’s forecast and predicted that “there won't be any Russians left in 2050.”

“It’s too late,” he told the Govorit Moskva radio station when asked if the demographic trend could be reversed.