is it worth coming back to the game after 2 years away from it

i have not played in 2 years and lately have been craving to play Volibear or Pantheon so much but i also realized how quickly this game often switches everything up how changes happen all too often with maps, items, patches etc that in a matter of a year or so you wouldn't even know what your looking at. for the past 2 years i've been drifting from from MMO'S and other genre's but when you have years upon years in a game like league it's really hard to let go and forget.