I know I ask this question a lot, and I know the common answer is "whatever you want" and as one who often prescribes that advice to others, I totally get it. So this is less about "do you want more sci fi? or more portraits?" and more about the following couple of items:
1) Are there any girls you'd like to see me bring back that may have fallen out of favor? In all honesty, I generally chase whatever fancies me at the time, but I'm always looking for more inspiration. Makeovers or just bringing back old OCs can be fun in its own right!
2) Perhaps more specifically, are there any stories / story arcs you'd like me to go back to and finish or extend? I know I've left a few open due to "SDS" or "Shiny Distraction Syndrome" -- it's hard to know if they're worth going back to - especially if I have other ideas that are currently clamoring for render times.
To be up front, I'm admittedly not likely to go back to a set purely for the sake of making offsite content. This is more for any unfinished stories that you'd like to see wrapped up or a second chapter to, etc.
And, of course, if there's a story idea you have, I'd be happy to hear it too!