I don't think there's any information in the public domain about that either way. But in any case it seems unlikely that Gox have substantial debts beyond what they owe depositors, so even if depositors were somehow considered to have priority it wouldn't make much difference to the eventual payout.
There is the alleged missing $27 million in bank deposits. I presume Mizuho or one of Mt. Gox's other banks is probably sitting on it.
A second point is the proximate cause of Mt. Gox declaring itself bankrupt. It seems very likely that the company experienced a cash flow squeeze in which it was unable to service its debts, and said inability resulted in its banks calling in their loans. With no money, Mt. Gox could not continue to operate. Wages could not be covered; rent, service providers, etc. could not be paid, and these creditors would probably file suit in order to recover any outstanding balances. Bankruptcy was the only option at that point.
When a company is being stripped of its assets, the goal of the perpetrators often can be to force it into bankruptcy, and then pose as the saviours who will restructure and return it to profitability. Once they win control over the victim company, then they divide up the spoils, and leave behind an empty shell.
Asset stripping is a nasty business. That's why Mt. Gox depositors need a friend in court, and someone to look out for their interests.