http://variety.com/2017/film/box-office/box-office-annabelle-creation-nabs-4-million-in-thursday-pre-shows-1202523758/
The Conjuring 2 did 3.4M in June of last year. Lights Out did 1.8M in July of last year.
Might I be a little cynical and add that 35+ though likely is not locked
I can imagine OD coming down to 15-16:
5 + 10-11 + 11 (+0 to 10%) + 7.5 (-32%) = 33.5-34.5 ow (15-16 od)
Again, being pessimistic.