Arc System Works recently visited Riot Games, the company most famous for developing League of Legends.
While it’s not uncommon for developers to visit with other companies, this one seems to have caught many off guard. This has also led some to speculate that we could see some sort of crossover between the two companies with the biggest speculation being the addition of a BlazBlue or Guilty Gear character in League of Legends. Others believe that League of Legends characters could become playable in Ark System Works’ games.
— アークシステムワークス公式ツイッター (@ARCSY_Event) July 20, 2017