correct tense [he will make/say] and [a boy who will be born]

[ansonman]

I have made up the sentences below.

(1a) I am going to see a psychic next week. I will find out what predictions he will make.
(1b) I am going to see a psychic next week. I will find out what predictions he makes.

(2a) I will wait and see what he will do. Then, I will take action.
(2b) I will wait and see what he does. Then, I will take action.

(3a) Many psychics think a boy who will be born in the North Pole seventy years from now will be the best genius.
(3b) Many psychics think a boy who is born in the North Pole seventy years from now will be the best genius.


My non-native friends think it's not idiomatic to use "will" twice in the same sentence. Does that mean the "a" versions are all wrong? Thank you for your help.

[Alan]

While the second 'will' in each case is not grammatically incorrect in these sentences, they are at best unnecessary and at worst semantically strange.