Thorium, fusion or fast breeders. The biggest cost of current nuclear fission reactors is in the initial capital outlay (and regulatory uncertainty). The price of Uran is low; if the price would go up, more reserves would surely be found.

I agree, that using coal on a large scale isn't a good idea. (That includes the current scale.)

I agree with all the actuals / current data with you. I just don't see that we will need to use less energy in the long run.