You assume they haven't saved any of the profits they made so far. They have been running for what, 5 years? Sure the profits increase with time, but they should easilly have made 2-300M during that time. Sure they have costs and have surely taken nice salaries for themselves, but I don't think they would start from 0. My guess is they are using the coins / funds from the site to play the market around aug 1, they could probably make a huge chunk of the cash back that way.
I honestly hope that is true and they can see this as just a setback that might costs them 1.5 years. Although personally I'm hoping they will just stay to be that "rogue" exchange everyone knew, maybe becoming more regulated is the best and perhaps the only way to stay alive.