For all intents and purposes from the consumer's perspective, I believe the N5 is a done deal. Whatever prototypes have been offered to Google to select from have long been constructed. I have no idea of knowing if they've selected yet (but with it 4-5 months away, we can assume that if they haven't, it'll be within the next 30-60 days to give them time to establish production), but more than likely the bid devices are very similar to the 2013 flagships for each respective OEM.
I was just asking if there was anything in particular that you were looking forward to in the next Nexus smartphone. I hear rumors that it will have a 5-inch screen.
By the way, do you need the phone to pass the FCC before you can start production? I always get confused about when the manufacturer submits it for approval.