There's no need for anybody speaking English natively. Even without, English is the natural common language of the EU. A nice example is Pan-European university student networks such as IAESTE, AEGEE and BEST. English is the common language inside these organisations. The members do not even think twice about it. This is the case despite the fact that AEGEE is a French acronym and BEST has no member universities in English speaking countries.
Similarly, virtually any company in Europe that has more than one accepted work floor language, has $NATIONAL_LANGUAGE and English. And any company where the work floor language is not the national language, it's English.
Really, this battle has long ago been won. Only some archaic government institutions like the EU itself pretend that languages other than English still make a chance at becoming the lingua franca of Europe. Whether or not the UK currently is in a Euro-mood does not influence this at all.
Similarly, virtually any company in Europe that has more than one accepted work floor language, has $NATIONAL_LANGUAGE and English. And any company where the work floor language is not the national language, it's English.
Really, this battle has long ago been won. Only some archaic government institutions like the EU itself pretend that languages other than English still make a chance at becoming the lingua franca of Europe. Whether or not the UK currently is in a Euro-mood does not influence this at all.
Oh, and you forgot about Ireland.