new powerhouse? yea. dominate? hell no, bcs korean never have fps tradition since cs 1.6. and this game not popular in korean. thanks to riot give chance to korean scene make this region alive.
Valo has more possibilities with all the different utils but CS has more learning curve and a higher ceiling as you'll have to master those same things to the utmost limit
they'll be contenders as always, but it depends on which opponent teams play in the tourney, you might see drx get grouped at champs again you never know