If at the upcoming EU-ECOFIN Council meeting one government would ask for vote on the EU 27 version, the procedure for Enhanced Cooperation could be triggered.  

In parallel he is checking, whether an intergovernmental agreement, which would not need EU procedures is feasible.

Most of Euro-zone crisis management is based on intergovernmental agreements, which allows for fast track decisions and obstruction from single countries.  

All in all more promising news