It appears that Starbreeze is working on a sequel to The Darkness.  The information was apparently leaked to a dutch rapper who had created a rap based on the The Darkness.  He then mentioned it to a dutch 360 website called Xbox 360 Only.

http://www.xbox360only.nl/nieuwsitem.php?nid=9171

cool i played the darkness at my cuz ps3 and it was good

and a question how does darkness end,does it end for there to be a sequel or no

Weird. I heard that game kinda sucked.

I have The Darkness for my PS3... dunno why but i hated it :/

^^ really i dont own the game but i liked it it was pretty fun

The game was not bad, it had a great atmosphere.

One thing they should work on for sure is the online mode. Oh man that SUCKED.

But overall I would give this game 8.4.

I hated the crosshair actually more than anything, i couldn't shoot anything i wanted!

I played the DEMo on PS3 n it was crap./lol

no offense to the people who like it but with so many Great FPS's

i.e Resistance (for ps3 owners), COD 4, halo 3 (for 360 owners), Orange Box, Haze (for ps3 owners), UT 3 (for ps3 owners) coming

why go for darkness

Uhm the demo suckes =/.