Shedding more light on this mystery device and also what it looks like when sized up next to the iPhone 6.
Here are the shots:
These first couple of photos shows and confirms the device was going to be released with Dual LED and Carl Zeiss, this might be the biggest hint that this isn't or wasn't going to be the Lumia 1020 successor, I don't think any phone without Xenon flash should succeed the 1020.
Next, we see a few pics comparing the prototype to the iPhone 6. The iPhone 6 is 4.7inch display screen, judging from the photos below, it's safe to say that the prototype is somewhere around 5inch
Nokia has made very few thin devices, if I am correct the thinnest devices are the C7 and the Lumia 925, and looking at the pics below it is obvious they didn't try to make this one thin either, it looks about the same thickness (if not more) with the Lumia 1020.
This next pic shows a size comparison, the prototype is bigger obviously due to the bigger screen.
But I think that aluminum body is its main attraction.
This last pic shows what many Lumia owners have been clamoring for... a MicroSD slot. Currently, the only high end Lumia device to have a microSD slot is the behemoth Lumia 1520.
But we might see another one if this prototype ever comes back to life...
AS you can see it has a microSD slot and uses a nano SIM.