They won’t be sending humans up there again, ever. Manned space flight is pointless, they can learn much more with probes, as @Easter Road 1980 can no doubt confirm. Besides, the moon has no atmosphere and a weak electro magnetic field, a solar wind while they’re up there playing golf and everyone dies of radiation poisoning.
They only sent men to the moon when solar activity was low, it would not change now, if they sent more in the future