It is rumoured that Bandai Namco will be releasing a Dark Souls II PC version April 25. The accuracy of this is in contention however.
According to Siliconera, it will run at “four times higher graphic resolution and will run at 60 frames per second“. It will be available through Steam and there will also apparently be a PC version of the Collector’s Edition.
However, when asked about the release date Bandai Namco had this to say:
@JohnAlva114 We haven’t announced a PC release date yet – We’ll have more info to share on that front soon though!
— NAMCO BANDAI America (@namcogames) February 28, 2014
@RobHowardv2 To make sure the PC version is up to everyone’s expectations!
— NAMCO BANDAI America (@namcogames) February 28, 2014
Dark Souls II will be coming to PS3 and Xbox 360 March 11 in NA and March 14 in the EU.