No Bitcoin will not save Greece. Greece needs to leave the EU and Euro, reset and start from scratch. This is the only way out for Greece. No Bitcoin or EU reforms would not and will not help Greece.
Bitcoin would be able to save people's money from Banks influenced by capital controls, this was able to do with Bitcoin but too late for that now as well.
If Greece wanted to leave the Euro they would have voted NO in the parliament last day, but well, even Varoufakis gave up and voted yes. Are they buying time and preparing a plan to leave the euro on the sidelines? I dont know, what I perceive is they are probably clueless and wouldn't know what to do if they saw themselves in a situation where they are forced to leave the Euro.