https://www.pcgamer.com/heres-whats-changing-in-dark-souls-remastered/

When Dark Souls released for PC in 2012, it came nearly a year after the console versions and with quite a few problems – most infamously, its 30fps lock. But I live in hope that the forthcoming remaster won't need a gaggle of modders to bring it up to speed, and today publisher Bandai Namco has sent through a list of promising changes. The port is being worked on by QLOC, under supervision of From Software.

Not a lot has changed, really. 4K resolution is supported, and 60fps will be supported out of the box. Texture and lighting effects have been improved, though it'll be hard to verify this until we actually see the game in action on PC.