I see it reaching $650+ 700 millions overseas.
A 50 % rise from F5 due to universal popularity in each continent and in each traditionally big markets which can be translate the same way to the expanding markets.
If F5 was able to have great numbers (20+ millions) in France, germany, Australia, Uk, Russia, Mexico, Brasil and with great numbers like 15+ millions in average size markets like Italy and Spain, then it shows that this movie has tremendous universal popularity in each and every market. there is no single market where it underperform.
It shows that it can grow even more in a lot of markets undistinctibly.