Dublin being the capital of Eire though and not in Northern Ireland at all. The Northern Ireland you're thinking of is Belfast.
Edit: As for whether anything will happen. Yes, well it already has, Icelandic PM and the raid on the European Football Federation for starters. Other more blatant wrongdoing and private individuals will be followed up by the relevant tax agencies etc. Some drug dealers will get the Al Capone treatment.
Will it result in systemic change in the global financial industry and its offshore havens? No.
Will it result in anything at all happening to Vladimir Putin? No.
Will it result in whoever leaked the information dying of acute radiation poisoning in the near future? Almost certainly.