One of my apps went into "In Review" status at midnight (19 hours ago) and still hasn't been rejected or approved. The rejection or approval has always happened in less than 12 hours for me, so it seems like Apple might be holding all approvals until they've resolved this issue. At least, I hope that's the case... I really feel for the developers who got a slew of one-star reviews because of this.
It is worth emailing them if it takes longer than a few days. There is a process where after a couple of days, it should go into extended review, and they will email you.
