The next step would be to ship the migrants back to their home countries and pay those countries whatever it takes to rebuild. Reparations in the traditional sense. We were the aggressors, so we should be forced to pay.
The real EU "plan", of course, is the exact opposite. EU wants to slaughter all of its own citizens by proxy. That's why it continues to invade countries that insult Our Prophet, and continues to settle the migrants inside EU, does everything possible to make them maximally violent, and takes all necessary steps to guarantee that EU citizens are totally vulnerable to the violence and incapable of self-defense.
When the migrants follow EU command, EU leaders can then chant the magic incantation: "We strongly strongly condemn in the strongest strongest terms this cowardly cowardly outrage committed by cowardly cowards. We strongly strongly condemn in the strongest strongest terms this cowardly cowardly outrage committed by cowardly cowards. We strongly strongly condemn in the strongest strongest terms this cowardly cowardly outrage committed by cowardly cowards. We strongly strongly condemn in the strongest strongest terms this cowardly cowardly outrage committed by cowardly cowards." And the rest of us can paint our Facebook icons in appropriate colors, which will magically do something or other.
The current icon shows Polistra using a Personal Equation Machine.