Sooooo, Ekko pros got any tips yet?

I only played him once.

I maxed Q for the poke. Toss out Q have it hit them, slow them, now walk up and hit once, back off, have the back end of Q hit again and enjoy the speed boost. You can also auto attack after it returns to you as well. Takes some getting used to on what works better and when. I maxed E second. I used it solely to dodge/get around walls. So you dodge incoming skill shot, then the next enemy you click you leap onto. Sometimes it is better to dash onto an enemy champion than it is to dash onto the enemy champion. The dodge itself is about as far as a Lucian or a Graves dash. Only difference is that you have a 2nd one that can cover even more ground. Can be used to chase enemies too. E, dash onto minion, toss out Q, throw W where you think they will be going, profit? I maxed W last. Its got a long ass cooldown and out of all of his moves scales the worst because no damage output. It does increase the shield though but if you can pull off your combo properly you can actually get by without the damage shield aspect of it. Works well with your ultimate. Your R I find works best when you toss out W, wait about 2 seconds, let your time shadow walk into the circle and as it is about to fall press R. You will now nuke the surrounding enemies around you and in a fraction of a second they will now be stunned. Toss out Q at a large clump of enemies and burst them all down if you think you can kill them all. If you want to pull a Zed where you kill one target and get out what you do is focus said target with about 2 auto attacks toss out Q at the largest/deadliest group of enemies so that you can slow them down, keep auto attacking your target, use E against only the crowd control abilities and just keep making use of your auto abilities. Your E has 2 dashes so you can "pretend" to disengage after the first dodge and then jump right back onto the target to dodge another skill shot. Then hopefully your Q is back off cooldown, toss back at the mass grouping of enemies and create some distance between you and them and run away from them. I also recommend buying the farsight orb that way you can abuse the double wall jump by having vision of the jungle camp and thus the ability to jump onto them. This alone will create much distance between you and the pursuers.

he just came out give it 2weeks to a month and then watch how the pros play him

He will take some toning down, his numbers make him a little too strong but once he is more balanced I can't wait to see some pros pick him up, he will be able to make some awesome plays.

I can already see Bjersen Voyboy and Faker having fun with him.