But financial markets will be looking closely to see whether there is any more detail forthcoming Thursday about moves to lower the interest rates paid by Spain and Italy. One theory is that the euro zone’s rescue fund, the European Financial Stability Facility, could intervene alongside the central bank, which has recently stayed out of the bond markets.

Before heading to France, Finland and Spain for talks with fellow leaders, the prime minister of Italy, Mario Monti, added to the growing sense of anticipation Tuesday over an easing of the euro zone debt crisis in an interview with an Italian radio station, but again without providing any detail. “We and the rest of Europe are approaching the end of the tunnel,” Mr. Monti said.

“We are now seeing results both in the willingness of European institutions as well as from the governments of individual countries, including Germany,” he added.

Financial analysts like Holger Schmieding, chief economist at Berenberg Bank, and Christian Schulz, senior economist there, say they think they can see the outlines of the new strategy, although it remains unclear how much action will be coming in the very short term.

“News agency reports suggest that the E.C.B. may already be planning a coordinated bond purchase with the rescue fund E.F.S.F., where the latter would lend support in primary markets and the E.C.B. would intervene in secondary markets,” they wrote in a briefing note. “More likely than not, the E.C.B. will not act immediately but deliver a strong verbal intervention instead. Draghi is likely to warn officially that turmoil in sovereign bond markets impairs the transmission of E.C.B. monetary policy and that the E.C.B. will react decisively if the situation deteriorates.”

Mr. Schmieding and Mr. Schulz said, however, that Mr. Draghi was unlikely to confirm publicly any potential cooperation with the financial stability facility. “With luck, a forceful verbal intervention might already be enough to end this wave of the euro crisis,” they said.