It depends on the firm. I had a CB last Tuesday for a DC V100 and received an offer the next day. (Right after the Committee met.) But I was told if my interviewers hadn't sent their feedback to the Committee in time that I would have been considered the next time to the Committee met (the following week). I promptly withdrew from another DC V100 where I had had a CB two weeks ago and heard nothing. So who knows?
Also, there are so many people who say "It's not that bad, I'm top 20%, no LR and had a ton of callbacks, DC or wherever, etc." and that's great. It's fantastic really. But there are 600 students in our class, and I think it's pretty safe to say that probably 450-500 (maybe more) aren't having that kind of success. Regardless, there's so much luck involved in this process that it's scary... Good luck.