Hmmm cute... but in porn/AV, I am completely opposite from you guys. I think there's little point in improving AV tech beyond 1080p and/or 3D display. VR googles, tele-sensory, implants whatever. NO!
Even SD works well enough for the purpose of AV, which is masturbation, or as background for 2P (or better???) sex. 720P is better, 1080P is best, 4k is pointless. 3D with glasses is fine for regular movies, but gets in the way with AV. Come on... does anyone watch AV (adult vid) for AV (audio-video) experience? It's about a sexual experience. It's completely different from watching TV/movie or anything else. We watch AV not for itself but as an aid to a higher goal: masturbation. So think about upgrading the masturbation, not the aid.
For example, just a crazy thought, play AV on a waterproof big screen TV in the bathroom. Soak yourself (may be with a hot girl) in a hot bath with waterjet massage and maybe some kind of spa experience.
But that's just a crazy idea. Here is a much better one: Uber for sex. Use tech to help guys get sex. Sex, that is IT, fucking, it's the only meaningful upgrade from masturbation. Much of it will be simple prostitution, or its Japanese variants like compensated dating (援助交際) or delivery health. A man pick a girl, pays her some money for some kind of social or dating or sexual experience. But it may work in other ways too, could be just simple hook-up, no money exchange. Or it can support more sustained relationship, an affair (European sense of the word), with money exchange or not.
How it could work out different (better) from the sex trade and online dating businesses existing now is this: just like Uber, it may bring sex (and monetary compensation) to a lot of men and women who for many reasons had not make use of sex trade and online dating so far. A lot of people who rarely hire a limo uses Uber and many drivers who have never made money transporting people became Uber drivers. Could the same happen with sex? It's possible a lot of women who would not want to be a (fulltime) prostitute, like students, bored housewives, professionals would use something like this to get safe sex and/or make some money.
Another way to think about this: how to improve the tech of Food Channel? 3D? Smell-o-vision? Flavor-pad that the audience can lick? NO! Give the customer a real gourmet experience, in an restaurant or deliver the food, or best: a chef who makes house-call.
How about DMM/R18? Start with delivery health on dmm.co.jp?