On balance I think the Euro will survive as is although there is a significant risk (33% to my mind) that it will collapse.
For it to survive the European leaders, both creditors and debtors, need to get their act together. They are painfully slow at doing this but there are some signs of movement. Germany has indicated that it may not oppose an expansion of the rescue fund. Both China and Japan have committed to buy substantial amounts of European bonds. In short, not all the news is as bad as the likes of Ambrose Pritchard-Evans would have you believe.
I think that many both in and out of the Eurozone, in powerful and in basket case economies have now looked at the consequences of such failure and are pulling back from the precipice.
If it does survive it will be a substantially stronger currency. Should it fail I dread to think what would happen.