Is it Riot's intention to keep or increase the high damage?
Damage is too high. Seriously it's not that fun if the damage is so high, look at champs like Twitch you think he deals late game damage only? Wrong! even in lane phase he does insane amounts and almost one shots you. And cc does not negate damage because if you are stunned the enemy can literally kill you inside the stun duration. And now even the tanks get less tanky and more damage! Is this what Riot want's, if so should they not reveal their intention?
changes to his W, probably increase it. He deals 16% of your max health ( At rank 5 ) during the channel in magic damage and proccing brittle does another 16% of your max health. There's several videos on the PBE of people just curbstomping bruisers top lane in the early stages of the game with it because of how high the base damage is.