Fog and other various changes on champion splash art
For example Zed http://gameinfo.na.leagueoflegends.com/en/game-info/champions/zed/
Ive figured out the answer to why.. This must be in preparation for patch 4.20 Kappa
1 Comments
Patch 4.19 actually.
It could have something to do with Ao Shin, but that's doubtfull considering he was announced for 2015.
Considering it's late October, it most likey foreshadows (quite literally) the Harrowing.