Nordic Games
Edit: Formerly THQ owned it, but when they went to bankruptcy hell, Nordic Games bought some of their more prominent IP rights.
Really? Three years is long enough to get a remaster treatment nowadays? I wouldn't be surprised if this game doesn't make it onto Xbox One's "backward compatiblity" list.
To be fair, Nordic Games only got the IP rights to Darksiders in 2013 and the THQ trademarks in 2014. They are likely testing the waters to see if they should continue on with the IP as is, lay it to rest, or take it in a different direction. This is a sensible remaster especially if they could see the game as being more than what THQ ended up turning out.
As a more general edit:
Bundling together all previously released DLC, Nordic’s Deathinitive Edition is being handled by Gunfire Games, a development studio made up by many of the staffers that worked on the original release three years ago before THQ filed for bankruptcy.
Source
The article also goes into how they rewrote the entire renderer and such, so the game could end up looking pretty nice. It will be hard to argue if they price it sensibly, but honestly, they could probably get away with a $60 pricetag since this is essentially the GOTY edition of the game.