Well, somewhere someone mentioned that there won't be any next Jenna Jameson and that Jesse Jane probably was the last actual porn star to have been made.
It might've worked out rather well for both. There are no comparisons I can think of right now approaching their success, although Tera Patrick had a good run once.

Porn stardom and porn performance don't tend to line up, as feature porn seems to take care of their investment differently and much more offensively than the gonzo jungle.