There will be plenty of lawsuits to go around.  End result, maybe some lawyers get paid, but those who had bitcoins with Gox are out of luck.

I'm not sure why you or your brother are so wed to the idea that bitcoins are where you should park all your money.  They can be an investment, but you should never put all of your eggs in a single basket.

Both of you should take this as a life lesson and move on.  Keep mining if it makes you happy.  Life is too short to spend a day of it miserable.