Well, it's not quite so black and white. We have something resembling a roadmap to achieving the revival of a cryopreserved patient, but it's hardly a certainty. The fact that your roadmap has a few more details on than does the roadmap of $religion does not make them qualitatively different.

Pascal's wager would be verifiable if, say, someone invented a device like the ones in the Ghostbusters movies. That seems about as promising as freezing yourself after you die in my mind...