Unless they leave the Eurozone, not much will change. It’s the Euro that’s the cause of their economic instability, and consequently social and political instability. Their inability to control monetary policy is what has put them in this mess.
A return to the Drachma is the only viable long-term solution. Greece needs monetary control to return its economy and society to sanity. Even if a future Drachma becomes relatively cheap, this will only be good for their tourism and exports.
Any attempts to cling to the Euro and somehow restructure the debts will not solve the underlying problems, and will leave Greeks paying off the parasitic banks for a generation—and continuing to suffer for it. I also do not envisage any favours being done now that Greece’s ruling part are so-called “far-left radicals”.
They could dream of a debt cancellation, but I’ll eat my underpants if the ECB and European Commission let that happen.