I actually think DD/Dark Arisen is going to be ported to PC. There's no way Capcom didn't see the success of Dark Souls: Durante Edition.
The problem was putting so much talent behind it AND rushing it out the door poorly optimized on consoles.
And in the end, I do think DD will be a profitable venture for them. Not one that inspires a major sequel, but a venture that didn't bite them in the ass.