the audit won't prove much imo
It would prove everything. A ponzi at this stage will have significantly less money than it owes its customers. If they actually have the Midas touch then there is little point in starting scamming people later. It would be much safer to just close down the public offer and start trading using their own money. With the kind of profits they are claiming it wouldn't take them long to earn more money than most ponzi scammers will make in a life time.
Yeah, I'm not getting why it would take over a month to do it anyways. All addresses are on their site (likely in a database). The financial information is on the exchanges. It would take all of maybe 10 minutes to fully compile and analyze the data by writing a simple script. This would give 100% accuracy. It may even take more like 5 minutes for someone that is already knowledgeable on exchanges (and since they most have APIs that speeds it up even more). I really don't see any excuses for why it would take over a month to get it done unless it's all just a smokescreen.
The test has been done long time ago. Now they're waiting for the result from an independent guy