The PlayStation 2 was released in Japan on March 4, 2000. And a little over 13 years later, on March 27th, 2013, what is being called the final game will be released for the console.
Kotaku reports that those in Japan can expect the latest expansion to Final Fantasy XI, Seekers of Adoulin (the first in six years), to finally be available for purchase that day.
Despite being 13 years old, the system still has plenty of fans, and an average of 800 units are still sold every week in Japan. The PS2 isn't the only console from that era of gaming that still enjoys fresh software from time to time; the Dreamcast homebrew scene is still booming, though Final Fantasy XI: Seekers of Adoulin has the distinction of being a retail release.
Though another notable aspects is how it's a MMORPG. Then again, there are many still out there who still enjoy Phantasy Star Online on the Dreamcast and Gamecube. But again, those are being supported by fans who maintain their own servers, since Sega gave up on that cast cow ages ago. Whereas Square Enix still supports the game officially.
Given that people are still willing to abide by the monthly pay-to-play model, why shouldn't they? Though interested parties outside of Japan can nab the expansion for the PC version as well. Also, it remains to be seen if Final Fantasy XI: Seekers of Adoulin is truly the last PS2 game ever. I personally doubt it.