From what I've heard - CSR's each have a different opinion. I called a CSR today to ask about the "Iconic List". I didn't know what it was and I wanted to make sure I wasn't impacted by it. Long story short, the Nexus was brought up and the guy said something to the effect of "Communication from corporate to the CSRs is terrible. Different CSRs have their own opinions and I hear them telling customers that. I'll tell you this right now, the 15th is what I'm hearing, but it's far from in stone".
So it sounds like a lot of CSRs would rather have an answer than not have one. Even if that means they are full of BS. I bet we hear something today... but I doubt it will be in the form of a highly publicized announcement. It'll be another leaked document or "straight from the horse's mouth" rumor.
It won't be the 20th. If anything, the 26th would make more sense.