Well, there's still 3 Extremes open, and 2 of the Agents of Tarvin.

Pickings are not slim.

And then there's Important's Giantess who'll be back in action if he wishes her to be. The fight between Melon and Tantalum might be ending soon. Melon's second character is still unused.

Edit: There's also the group of people that Schradinger buttfucked in under 50 posts. They'll respawn and be looking for new fights.