Eh.. "lots of civilian nukes" would constitute a facesaving exit for the iranian regime, yes? Certainly just exiting nuclear technology would be hideously embarrasing to them after picking this big a fight over it.
And since it would directly substitute for the insanely wasteful way they currently burn natural gas for power, the economics look reasonable too, so a deal where several members of the security council sells the iranians a couple of reactors each, and get to have their experts crawl all over the iranian nuclear complex as a part of the deal seems likely to happen.