No doubt will he have a different leadership style to his predecessor.

英訳に間違いが有れば正してください。

彼は前任者とは異なるリーダーシップの形を発揮するのは間違いない。
No doubt will he have a different leadership style to his predecessor.

ヒント
語順

答え will heをhe willにする

No doubt he will have a different leadership style to his predecessor.

No doubtの後は倒置形にならない

there be no doubt thatの省略形