berlin german finance minister wolfgang schaeuble say wednesday european commission president jean-claude juncker plan build close european union base expand euro zone largely line germany vision bloc schaeuble say juncker discuss chancellor angela merkel annual state eu speech speak vision post-2019 eu 30 countries would use euro plan also include appoint eu finance minister run key budget help state trouble good put pressure expand euro zone precondition join euro zone must fulfil schaeuble tell ard broadcaster interview fact eu countries fulfill precondition become members euro lisbon treaty add eu countries wish adopt single currency public finance economies sound enough could face fate greece bail eu imf 2010 story add drop word final paragraph juncker 's eu plan largely line germany 's vision schaeuble