Do I need to repeat myself (sigh), I already pinpointed the map where it clear as day says what is what. W. Europe is France (Joan of Arc), Germany (Barbarossa), Burgundy. S. Europe (if one will be added) should be Italy, Sicily, Spain (El Cid), Portugal, Greece (if added). N. Europe (if one will be added) should be Scotland (already a part of West campaigns), England (teutorial), Swedes and Vikings (if added).
Pretty much what I am suggesting is to remove Europe map entirely and divide the campaigns into W., E., S., and N. Europe. There. Problem solved.
Either way, look here: Civilizations and further splits - #252 by Temudhun
See if we can come to an agreement of somekind. 