Just too early to tell. Need to see a trailer. But I think it should pass the Billion mark WW. Heck the last 2 Batman films alone passed the Billion mark, and plus MOS made well over $600mill ww which is pretty good for a reboot. So a MOS sequel without Batman would probably have been looking in the region of $700-800mill ww.
So yeah should pass a Billion as long as it's decent/good. If it's really good, then we will be looking at Avengers type box office.