Is there a chance for metawin to recover those coins? we are talking about a huge amount and looks like we know the exchanges where the funds was sent to, so, maybe if the Metawin team talk with the exchanges and prove the source of the hacked coins they can recover the money.

It's a complex situation, but glad to know that the site survived it. And once again here is a huge lesson for all, the risk os getting hacked is real even for secure engines like casinos.