There is no list of names for PES4 since it's not out yet. And they may still get more licences.
The league that are licenced should have all the players in those clubs named properly. For the rest, with so many teams and players, it would a real waste of time and effort for you to edit all the names yourself. Just get an X-Port or a Max Drive and download option files that other people have spent time fixing and updating everything and just get down to enjoying playing the game.