I watched the live stream video of version 4.11. they did address some major key points with rendering hair. the major though is how the “edges” of the hair strands are being treated. dithering edges seems to be the only substitute; which causes massive distortion with hair cards. and the only way to counter the of dithering is to use temporal anti-aliasing. ATM The only other way to bypass dithering would be to model the hair splines individually and then stylize the hair. it would look incredibly beautiful but the major drawback is that you would end up with a character wasting lots of system resources, possibly choking’s frame-rate. so it’s not technically practical, well not yet anyways.
Simply put an edge softener for hair and fur needs to be introduced. and if they can’t figure out a better way then at least allow us to plugin node sort our transparencies, or any better way of sorting them.