RE is far enough away that I don't have a lot of fully-formed fantasies yet. I've also started to see FI/RE as more of a spectrum for myself, too-- we're about 3 years out from "retire comfortably with to trouble in Central or South America," 5 years from "retire comfortably to Central or South America AND take yearly trips abroad to anywhere for a few months, and 7 years from "retire anywhere, I'm rich, bitch!"
Probably one day something will annoy me, I will have passed one of those gates, and I'll look at my SO and say "screw it, let's do it." We'll probably retire gently, though, and give a few weeks or months of notice as we make firm plans. That is, unless work changes drastically and I find some reason to enjoy something more dramatic :)