There's chatter in the financial community that a bailout package for Greece will arrive from the European Extraordinary Summit on Thursday. But there is little certainty in Brussels about what will be delivered, or if a move would have any legal basis.

Greece

The success of the summit will depend on what the markets call a bailout, said Daniel Gros, director of the Centre for European Policy Studies.
 
"Would a simple promise to help in case Greece needs, a promise for a debt guarantee, be seen as a bailout? Well, that is possible," Gros said. "But if the markets really want to hear a detailed plan saying 'we'll give Greece credit today,' that will be much more difficult."

There's a sense in Brussels that it is still is too early to present a complete and detailed bailout plan for Greece, according to Paul de Grauwe, an economics professor at Leuven University who also works as a policy advisor for the European Commission President Jose Manuel Barroso.

"It doesn't make sense for the EU leaders to come up with a detailed plan as there's no default yet," De Grauwe said.