Are you sure? When it first arose, on the face of it, I also assumed he would be eligible in the event that he acquired British citizenship, but Charlie Darwin pointed out that he doesn't fulfil article 18.1(a)* and the English FA have ruled him out as a result.
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* "At the time of [a player’s] first full or partial appearance in an international match in an official competition for his current Association, he must already have the nationality of the representative team for which he wishes to play."