Read it in the Standard newspaper today:
http://derstandard.at/1369363545443/Neue-Rechnung-Staatsschulden-um-15-Milliarden-hoeherFound no English article yet, but here are the main points:
EUROSTAT, the EU statistics agency, will tighten the debt measurement criterias in the fall, because many countries use "tricks" to keep indebted state government bodies (such as state rail debt, hospital debt etc.) out of the official debt data that is published under Maastricht.
Officially, EUROSTAT says that the massive Greek budget/debt "tricks" to sneak itself into the Eurozone in the early 2000s was the main reason for the stricter criteria.
Of course we all know how the Greeks Statistics Department manipulated the debt and deficit numbers to make them nicer ...
In Austria, the article mentions that an additional 15 Bio. € of debt will be added in the fall or ca. 4.7% of GDP.
The article doesn't mention by how much the debt will increase in other countries.