I do believe that the precedent of Britain leaving would influence others to do so. I don’t believe Europe will be a cohesive entity over the long haul.
Do I think there are others that would drop out this week, or within a month? No. I do believe others will leave and I think Britain will have paved the way for that, if it leaves.
Any of the eurozone members already have a degree of fanatical devotion to their particular subset of the EU. They will stay. A number of others are just too socialist-minded to even think of leaving that empire.