you are assuming that we will get user profiles. Since they were not released with iOS 7, and there has been no hint of user profiles either through the rumor mill or devs going through the source code, I am pretty sure we won't be getting separate user profiles in iOS 7.
Absolutely I am just making an assumption based on nothing - wasn't trying to claim that they were going to come out with it now, but just stating my opinion that they should.
However, user profiles are much less useful on a smart phone than on a tablet. This is one reason to not have implemented or announced it yet. People typically don't use a phone as a home phone anymore, that paradigm shift has already passed us by. When you call a mobile number you expect to reach a specific person, not their house anymore.
But you are 100% right, we haven't heard a sniff of it yet, so it most likely won't be coming now, even though it really should.