I think the quality of ports will increase dramatically when we stop porting from PS3 and Xbox 360 versions.
Time is all that's required. New consoles use the same architecture as modern PCs and all porting will be is allocating the resources properly and extending support, some of which is taken care of by the manufacturer of the graphics card. Releasing a PC port could be a hassle if you wanted to do it right, but soon, not releasing a PC port will be just lazy and probably missed revenue... Unless you're Nintendo.
Time is all that's required. New consoles use the same architecture as modern PCs and all porting will be is allocating the resources properly and extending support, some of which is taken care of by the manufacturer of the graphics card. Releasing a PC port could be a hassle if you wanted to do it right, but soon, not releasing a PC port will be just lazy and probably missed revenue... Unless you're Nintendo.