There main difference between this case and Madoff, is that the trades actually happened, and people were making their own trading decisions.
I don't know what the court
will say, but they
could say that the people were trading non-existent coins, so the balances are meaningless.
Actual deposits and withdrawals are numbers that the court can verify with the banks and in the blockchain. The trades inside MtGOX are recorded only in Mark's database, and any information that comes from him must be treated as a mere hint that needs independent evidence to be trusted. The database may have been doctored to give large bogus balances to some clients.
sure some of your speculation may be correct; however, if NO one is contesting their balance, then the rest of your speculation does NOT matter. If customers agree that they had X amount of BTC and Y amount of Fiat, then what else is there to question?