Recent decision of the Permanent Court of Arbitration in The Hague about territorial dispute between Philippines and China pushes the development in the South China Sea to the next stage. In terms of international law, this decision does not have an efficiency for China because China did not accept and rejected it. But it is sufficiently strong impulse for reaction of parties involved in disputes in the SCS, for outsiders as well as for international organizations, in particular ASEAN. One of the reasons for expected reactions of actors is their growing interest in using the disputed area and adjacent waters in favor of their own regional development. The work aims to outline scenarios for the development of SCS region which are important from global perspective and therefore for the EU too.