Even with the pandemic, Riot Games held last year's League of Legends finals in person, so it's not surprising the developer plans to host this year's championships in the flesh again. Riot Games announced that the 2021 World Championship would be held in Shenzhen, China, on November 6. It didn't mention safety measures, but more details are coming at "later dates." Riot did mention the 60,334-person capacity of the Universiade Sports Center venue.
Last year's competition in Shanghai relied on an "isolation bubble" for the competitors, with the event proceeding mostly as planned. There were substitutes for players who couldn't compete due to pandemic-related travel issues. It looks like the developers are confident enough that it mounted last year's event successfully, plus there's hope on improved conditions with vaccine rollouts ongoing. It won't be surprising if other tournaments follow suit, of course, with the need for safety measures in place still.
Source: Engadget