It really depends on the terms and conditions of the derivatives contracts. There may be penalties if you want to unwind them. Conversely, DB may have to put up more collateral if its credit rating falls.
Nobody knows what is in these contracts, except for DB.
DB and the counter party.
Events may have already taken place which executed DB. We'll not know for a week or two.
Derivatives are constructed in every conceivable fashion. You could probably construct and sell a derivative on whether the Giants will win another world series and there's no controlling legal authority that says you can't.
And that's not a business a consumer deposit and loan bank ought to be in.