It might be possible that Mark Karpeles messed up in regards to the cold wallets and need expert help to recover it.
I think this looks like something that's worth looking more closely into:
http://www.reddit.com/r/Bitcoin/comments/1z8fmc/mtgox_private_key_related_coin_loss_a_explanation/What will Gavin Andresen, other core devs and the Bitcoin Foundation do about this?
Personally I would flown directly to Tokoyo and do whatever I could to look into this situation if I had the money, connections and knowledge required to look into this closely. Unfortunately I don't have this.
There are however some people that do.
And it is the responsibility of the people who have the resources, knowledge and wisdom to help those less fortunate.While you could say anything about people who had money or coins deposited with MtGox, the fact is that most (if any) did not deserve what happened to them.
Here are some real stories about real people getting affected in a real way.
It is to sad to see that families are being wrecked, and people not being able to rightfully use the money that belongs to them to buy a house, pay their debt and so on. While most of you devs and experts are smart enough not to be affected by this, not all people are.
Bitcoin was meant to change the world for the better, not to fuck people over. While bitcoin is not the same as MtGox, if you actually acted on this information, and it proved to be successful, you would become true heroes, and bitcoin would shine - and you know you at least did what you could to try to help people.
In the opposite case, you basically tell the entire world that you do not care. The Foundation has enough money to assemble a task force to fly to Japan and assist Mark Karpeles.
A Task Force consisting of diplomatic skilled non-judging experts that will only help Mark, and not put blame, harass or otherwise make things difficult for Mark and MtGox, but an honest attempt to help the people who've been caught out in this situation.
The Foundation do have the financial means. While the foundation and software experts in this community do not owe the victims anything and do not have a legal obligation to intervene, the situation is so special that intervention is warranted, Charlie Shrem also said this in one of the latest Let's Talk Bitcoin episodes.
If this could be fixed somehow, and it's all a matter of fixing the private keys, and that is in fact possible, not only would you help all those victims to at least recover some part of their investment, but you would also be complete heroes, and bring a lot of positive press to bitcoin. While I understand a lot of you don't care about being heroes, the gratitude from people and the knowledge that you touched the lives of countless people will be a reward enough in itself.
I sincerely hope that you will take action and help.
Ps: My loss in the event is very small, but I really have compassion and thought for all the rest of the customers who got caught out. Let's not be insensitive and put blame on people and call them stupid, let's help them!