If Greece leaves the Euro zone, that would make the Euro stronger, and that may happen.
That's not likely to happen, I suspect what will happen is more countries like Switzerland who are fed up of footing the bill for countries like Greece will leave the Euro and as a result the euro zone will end up crashing because all you'll have then are countries left alone with massive debts that they don't intend to pay off.
Switzerland isn't part of the Euro zone, they have nothing to pay. It's the Germans, the French and people from Holland who will have to pay the bill. Do they want to? The Greeks have said they don't want to pay back, we shall not expect others to pay for them.
