OrbitalDawn
Ulysses Everett McGill
Over and above the Nexus 5, what would you consider necessary on the next device? I'd wager that the 5 is pretty complete as it is, at least from a hardware standpoint. The software is catching up in leaps and bounds, too.
In terms of hardware a stronger camera and battery, mainly. I reckon it's snappy enough, so no real performance complaints. The software will be a continuous process of updating anyway, so not really much amiss there.