I have just learned by some students in Aeroclubs, that their CAA asked them (by postmail) to get at least a"level 4 ICAO" if they intend to get a professional license after March 2008.
Regrettably some clubs do not have any instructor who speak English (at level 4), instruction is still given in non english language in most countries.
I think for many wanabes, they can make a cross on this career unless they take the time and the effort to learn English.