Here are just a few ideas I've had rattling around in my head a bit. None of them are named yet so bear with me on that one.
1. A standard freeform High School roleplay, no special monsters or demons or whatever, just people having conversations, relationships, and the other such nonsense that comes with going to a high school. Starting from the beginning of the year and lasting as long as we can make it before the Roleplay dies.
2. A roleplay set in the Blade Runner universe, pretty standard Sci-Fi stuff. Overpopulated earth with an oppressive government, illegal robots ("Replicants") completely indistinguishable from their human counterparts but with only a 4 year lifespan, police ("Blade Runners") who hunt down the Replicants and "Deactivate" them through any means necessary. Viewing the film may be necessary in order to get accustomed to the universe (But it's totally worth it because it's my favourite film)
3. A roleplay set in a post-apocalyptic universe where most of the human race has left the planet to the point where only a few dozen humans still remain living there. Nature has taken over turning cities into literal jungles with only husks of building being overgrown with life. Exotic animals roam free now, safe from the homo sapiens who once hunted them. Think something like 12 Monkeys.