The phrase "will be ready" is correct and usable in written English. You can use this phrase when you are talking about something that will be finished or will be prepared in the future. For example, "The new playground will be ready next week."
We will be ready".
They will be ready".
And ABC will be ready.
Tea-partiers will be ready.
The offense will be ready.
Everybody will be ready".
Ogunbowale will be ready.
But the company will be ready.
"I will be ready for whatever inning.
"I will be ready, and no excuses.
My crown will be ready Monday morning".
Being a terminologist, I care about word choice. Ludwig simply helps me pick the best words for any translation. Five stars!
Maria Pia Montoro
Terminologist and Q/A Analyst @ Translation Centre for the Bodies of the European Union