misunderstanding

Hello!
I have to complete the second sentence so that it has a similar meaning to the first sentence, using the word given. Do not alter the word in any way.
ex.: Abby is rumoured to be about to become a Sky News presenter. VERGE
Rumour has…becoming a Sky News presenter.
At the key answer, I have the solution: “Rumour has it that Abby is on the verge of becoming a Sky News presenter.” which is a little weird for me. why “it” ?
What about my solution: “Rumour has come out that Abby is on the verge of becoming a Sky News presenter.”?
Thank you for your time and support!

‘Rumour has it’ is an idiomatic phrase meaning ‘it is rumoured’.