I really hope it beats Star Wars: TFA but I also see it slowing down a lot from this weekend onwards. Deadpool 2 is coming out May 18th and then Solo: A Star Wars Story comes out a week later. Solo should manage at least 1 billion WW (Though I assume it will be the lowest grossing of the new star wars movies) and if the reviews and word of mouth of Deadpool 2 are as good as the original it will come close to 1 billion WW as well.
Already two movies at 1 Billion+ WW. I wonder how many we'll have by the end of the year. So far the highest was 5 back in 2015.