Salam I came across a discussion on the Muslim Matters site today regarding the Friday khutba being delivered in the Arabic language. The author unfortunately only cited a general comparative work on fiqh for the Hanafi position, as opposed to researching in the specialized and detailed works of the school. Perhaps he might be unaware that Mufti Taqi Uthmani has a translated work in English which covers this issue thoroughly and has been available for some time.