I looked on the web anything about November 11th. I found at WIKI that November 11th is known as the Remembrance Day, a day observed in Commonwealth of Nations member states since the end of the First World War to remember the members of their armed forces who have died in the line of duty. Does this sound like foreshadowing that Zoro will die as world's greatest swordsman in a great war? Becoming World's #1 Swordsman is something he will accomplish, but perhaps there is more for Zoro beyond defeating Mihawk.