Prayer is a petition to God, so the issue is why petition God for His will be done if His will will be done regardless?
again i believe that verse 9 and 10 is a statement, like an introduction.
Our Father which art in heaven, Hallowed be thy name.
10 (Thy kingdom come). (Thy will be done) (in earth), (as it is) in heaven.
No amount of praying will change this fact above.
then we get into what you want to say.
11 Give us this day our daily bread.
12 And forgive us our debts, as we forgive our debtors.
and you can pray that you or others will do his will now on earth will help,
in this current evil generation, that the devil has the whole world decieved.