It would require a radically new design that takes a lot of the cost out. You also have the spent fuel storage problem and the risk factors of a meltdown (however small) to tackle which are always working against you. Technology development in the Nuclear area is SLOW.

Now compare to batteries. There are thousands of companies working on new technology development.

It’s just a matter of brain power and capital working on the problems.

I don’t see a viable path forward for Nuclear at the current costs and with how dramatic the rise of renewables and battery storage is increasing.