I wonder if we're heading to a world where any company who wants to run internationally needs to keep all US-citizen data on US servers, and EU-citizen data on EU servers?
Currently it doesn't look like holding US-citizen data on EU servers will be a problem anytime soon. But if the EU decides that the protections for their citizens provided by the "privacy-shield" agreement are not good enough then it would mean US companies could not hold or control EU-resident's data.