Google will block all ads on websites with popups starting 23.01.2018 so in about 3 weeks. Chrome has a marketshare on desktop of 60% and on mobile of 90% with android. What are you planing to replace popups/popunder ads with? Or are you just gonna accept to loose 70-80% of your ad revenue?
I think there will be yet another option. Small publishers using hosted platforms like blogspot will be affected for sure, but for everyone else I think there will be a solution to do pops anyway. At least for few months.