Riot has just released details over another new champion arriving to the LOL world in the coming week, known as Fizz, the Tidal Strider.
You can read up on this new champion via this link: http://euw.leagueoflegends.com/news/champion-sneak-peek-%E2%80%93-fizz-tidal-trickster
The graphic on the site kinda hints that the champion may have a pet Shark? But I cannot see how that would be implemented into the game, so it's probably just a tease. Still, the recent champions have been amazing to place, such as Shyvana, so I am really excited about the indication of another new champion!