I think there is one (it's under the moderator thread for DCW IRL).
When I first started DCW IRL, I wasn't aiming to cause trouble, just have something fun to do on the side. Personally speaking, I would hope it wouldn't get too messy and while a subforum would definitely be nice, I don't think that it's something we should put a lot of effort into at the moment. Generally speaking, we have enough roleplayers to fill most of the ranks (not including special rounds) and having a roleplaying subforum (in my opinion) will not change too much. We try to explain roleplay as much as possible, though to really understand you actually have to participate (like many things in life). I think that those who are curious will try it if other members are encouraging.
Since we're only doing one round at a time, there's really no need in a subforum at this point. All we would see would be old DCW IRL rounds (which thanks to Moho, can be found in a compiled thread). Perhaps the reason why DCW IRL seems to crowd up so much of the chatroom is due to the fact that there are rarely any new threads created in the chatroom other than DCW IRL threads.
If we ever got into roleplaying to a greater extent with several rounds at the same time (or more, or a great deal of unmoderated threads), then organization would be more key. I'd say that until we've reached a point where DCW IRL has expanded past the "one round a time, 8 players per round" stage, we should put this matter to rest.
Again...my point is, it would be nice. It actually would. But again...DCW wasn't built as an RP website and I think that if DCW IRL gets too big, it should be moved to somewhere separate. I don't think nor want DCW IRL to become the only purpose of DCW...DCW is a wiki forum at heart, not RP forum.
I love that DCW IRL made a lot of you guys happy and entertained all of you, but I don't want to cause trouble for DCW either. Forcing DCW to become something other than what Maurice set out to do would be trouble.
If you guys are really interested in RPing, you could always try out a site called HexRPG. I know, it won't be the same. DCW is a community, a tight-knit one. But I'm not sure taking RPing to another level will help that.