It's going to be mobile. In case anyone hasn't noticed there's a giant sucking sound in the background and that the Internet moving towards iPhones, Tablets, etc.
1) Therefore there's going to be a slew of really creepy APPs developed to try and "help" perverts find each other. But they'll all come down to a trillion horny men trying to get laid and failing at it. Swinging couples and women usually end up dumping things like this within 2 months because of single male overload... So webmasters fill the void with fake adverts.
2) As long as Youtube is around Porn Tube sites will still be around. But just as Youtube is wrestling with Hollywood... The porn tubes will have their own problems. With fewer and fewer production houses and content creators the tube site's will have to do more and more of the filming themselves. In the end they'll be filled with shit from all over the world and they'll see their dominance decline considerably.
3) Cam sites are going to get hit hard. We've already seen Sexploitation start and that's going to cause fear. But we're also going to see "Generation Free" trolling Facebook and other social sites for free sex shows. (Expect lots more pedo arrests in the future)
4) Services such as Onedrive are going to be the pervert's go to sources. He'll upload his stuff and share it only with who he wants. Same will be for swingers, etc.
5) Things like Virtual Reality, Google Glass, etc. Will have a momentary "curb side appeal" but interest in them will die out quickly.
So where's the future of porn???
In the private market.
- It's going to be the shooter that can film a "not for publication" video that follows a script specified by the customer.
- It's going to be the hooker that allows herself to be filmed on condition of it never being released
- It's going to be swingers that produce their own videos and share them only within a small group.