I really would like the do something along the lines of the Chronicles of Riddick. The asshole personality and amazing glowing eyes.
A plot of neko pet/slave is always welcome.
My fascination with zombies has been running rampant lately. I would love to design some sort of either mass rp or just a couple of people; where an infected apocalypse has happened and everyone is forced to not only fight off hordes of infected but fend for themselves.
An adventure plot along the lines of uncharted would be fun as well. An adventurer going and exploring runes for lost treasures.