Not Germany, France is unlikely.
Italy, Spain for definite - the Italians detest the Germans for insulting them by putting in an administrator and over-riding their parliament.
Portugal and Greece as well possibly.
Germany has had to pay the freight for a lot of the poorer EU countries that can't support themselves. The people here are upset about that.
I hear too many Germans my age (47) and older longing for the days of the D Mark and how things were before the EU.
I wouldn't count them out of an exit if it looks like they are going to be the last big European country left in the union.