Nansen traipsed across Greenland and the North Pole between 1893 and 1896. A Sony-owned splash page at uutforsket.no helps point the finger at Uncharted.
Thealso carries a date for tomorrow, March 22nd, and is time stamped 20:59. Sony Denmark apparently pulled a similar stunt before Uncharted 3 announced.
Golden Abyss was the last instalment in the Uncharted franchise and it released for PlayStation Vita, while Naughty Dog's last entry was Uncharted 3 in November 2011. The studio is developing The Last of Us but it's not known what the rest are up to, including writer Amy Hennig. Multiplayer DLC support ends next month for Uncharted 3.