Find something that you can do, which hasn't been done to death and can't be copied by 100s of other people.
Product is everything. It's too easy to dismiss a bad ratio as bad traffic. A good product has a habit of attracting better traffic. Go figure.
This is the toughest part, until sex changes it's always going to be the same. so the way it's presented makes presentation the key. Still this has been thoroughly explored and it's a good bet that if it's still around it worked, if it's not, it didn't work. Yes simple logic, wait a while.
Let's use "Sex in a Vehicle" done to death and been done for well over 20 years. So take the basic theme and adapt it. Normal girls in 2012 don't get into a van with 4 guys and fuck them. Drunken girls might, students hard up for their rent this week might turn tricks as a part time job. Hookers will. Use that as the reason for her to get into the van. Or better still a camper van.
Don't shoot it Gonzo or POV, done to death. Shoot it as a normal scene with the camera observing the action. Or as Voyeur with
Hidden Cameras. Tell the viewers they are hidden and show how, or make out they are phones with good cameras. In reality use real cameras bolted to the sides of the van and shooting from different angles.
Most important is to make it believable. This is 2012 and the customer will not swallow 1998 content, even if it is HD. It
has to be better to sell.
There are many ways to give an old theme a unique twist. Remember though that giving 100 scenes the exact unique twist becomes boring.