I will really be surprised if 1D doesn't get this. I know for pure sales they should triumph Bieber but idk how to gauge all the possible streams. With FOUR they put the album on YouTube but who knows if they are gonna do that again.
I would also like to remind people Justin Bieber went to number 1 after a month long countdown and a week of promo. Drag Me Down had none of that and still sold more copies.
In Britain 1D will not be beaten by him by any chance. It'll be within 100-75k in the US at the most but I think the boys will get it and deservedly so.