That's the whole point of this club, bringing people together to be creative in ways other than just kinky 1:1 private roleplay. If we can get this to fly and there's interest, I will do everything I can to help!
There's a lot of people that joined this club, and a good amount who have submitted writing to the challenges. But I also think this is a niche in the greater community. I'm definitely part of a minority who are not here to just flick my bean while writing sexy shit with someone, so a lot of my ideas likely won't appeal to a huge portion of the community. Some of my weird ideas include:
An RP where Two Characters are outlined with character sheets/bios/pictures, a first post is made to set the scene, and then people randomly write the next post, as either character.
A picture writing challenge on the regular - post a pic, see what it inspires people to write.
A cooperative world building challenge where we work together to set expectations, the develop a world with a rich history, detailed locations, and interesting characters that everyone ends up wanting to play in.
A challenge/roleplay where the whole point is to invert the trope or stand it on its head in a short scene.
Those were just what came out when I thought "what else might be interesting for this club" right now. They may be good or bad, probably require a lot of effort to make workable, and likely don't have a lot of interested from others. But if I'm full of anything, I'm full of ideas.
But to reiterate my original point - I'm just here to facilitate people writing more, being more creative, and sharing with the larger community! Whatever form that takes, I'm here to make it happen!