It's released in China in 2 weeks. Advanced ticket tracking in China shows that BP is ahead of Spider-Man Homecoming, which had a 71 milly 3 day opening.
So if we assume that for it's entire run in China, BP makes 100 milly (Spider-man made 116m total in China, and 25m in Japan), that means the USA and non-China foreign markets just have to pull an additional 200m total for the remainder of BP's box office run to secure 1 billy.
700m (current, done in 2 weeks) + additional 200m (they got months to do this, might only need weeks) + 100m from China (seems likely) = Billionnaire boys club.
And that's not factoring the additional 15-25m it could get from Japan.
I think we gon do it.