Secret crisis meeting being held tonight in Luxembourg
Everyone is of course furiously denying it. If Greece leaves, their new currency would be worth much less and their national debt consequently much higher. They would have no chance of paying it and would then default, badly impacting EU countries and banks which own Greek debt. It could also be the beginning of the end for the EU.
So, the EU will probably try to bail Greece out again, which will only prolong the agony.