Just for curiosity, why the Snowdown skins no longer have to do with the Christimas?
On the early years of League, skins that were released at the time of Christmas actually had to do with the Christmas. We had things like Santa Gragas, Old Saint Zilean, and Toy Solider Gangplank. However, starting at 2013, all Snowdown skins are purely snow/ice themed. They no longer have that feeling of Christmas that older skins used to have.
I would like to know why Riot started to do this. They want to avoid religious connotation? They want the skins to tie more to the game itself? They want the game to have more original content instead of making every skin based on something from the popular culture?