I hazard a prediction.

On Monday the 18th of June there will be no difference in the current state of affairs in Greece.

No change in the terms of reference of the political discourse.  No change in the inability of the state to take decisions that can make a difference.  And no change in the social deficit or lack of citizenship ethos.   Greece is not facing an economic crisis but a political one that was aggravated by economic missmanagement.

Elections do not change political systems.  Citizens and political leaders do.  Greece appears to lack both.