Looking on the internet deeply has found these results:

No body knows what will happen is the most popular phrase on the web.

No body known what will happen 11 results on the web	No body knows what will happen 111,800 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
I guarantee the test will happen. Somewhere out there something will happen. Madam President, once again we must salute the development of this large police body known as Europol. Thousands can perish and nothing will happen. We have several witness accounts of a petition naming your husband as delegate to an illegal body known as the New York Provincial Congress. So much will happen, Hias is outside. Imagine what will happen if your powers grow. LAPD found blood but no body.	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

No body known what will happen

11 results on the web

No body knows what will happen

111,800 results on the web

More popular!

I guarantee the test will happen.
Somewhere out there something will happen.
Madam President, once again we must salute the development of this large police body known as Europol.
Thousands can perish and nothing will happen.
We have several witness accounts of a petition naming your husband as delegate to an illegal body known as the New York Provincial Congress.
So much will happen, Hias is outside.
Imagine what will happen if your powers grow.
LAPD found blood but no body.

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.