Read the title and thought he was available already... this update can't come soon enough!

Nothing's been announced by the devs yet. It could be they're focusing on new characters, balance and matchmaking issues before turning to new maps.

Yeah, that was a very quick glimpse. And now we'll get to see him used during a whole match :D

He won't be released to the general public yet, don't worry ;P He'll be used by the devs to play a public match via Twitch. Altough last time this happened, with Celeste, she was officially released a couple days afterwards, so fingers crossed!

The devs announced they'll be showing the latest addition to the Fold during their Twitch stream this friday. Vox incoming! Who else is hyped? :D

From the looks of it, you did what you could... The build is solid, and the Atlas surely helped you to slow down SAW and Glaive's rate of attack. Unfortunately, there's not much else you could've done. No build nor hero could withstand a 3v1 on that magnitude, not even the mighty Tanksha.

Also remember to harrass from the early game. Jungle fast, jungle a lot, and peek at the lane now and then to catch an overextended Ringo with the aid of your laner. The current meta for Tanksha is aiming for the Crucible as the first T3, btw. This would allow you to turret dive if needed (but never too greedy!). Second item: another defensive item such as Atlas Pauldron. And THEN go for the Aftershock, to enhance Koshka's damage during late-game up to relevant burst again (her natural...

If the case is not enough defense against Ringo, I'd exchange a Shatterglass for an Atlas Pauldron for sure. You need extra defense against a fully buffed Ringo, and Atlas' active is also great to slow down his barrage. Obviously, you can always go the way of the Tanshka: Crucible, Crucible, Atlas Pauldron, Boots, Aftershock and Eve of Harvest. This should prove enough to get in, hit & get out; you will definitely need assistance to finish Ringo as you lack enough burst to do it on...

Crucible, Fountain of Renewal and Atlas Pauldron are a must, imho.

And it gets even harder when it's a Double Glory Weekend...