That thread is full of people just like you and me who don't have a clue how the world will look like 3 months time, let alone in 2021. Looking at countries taking measures, the Bundesliga is already in talks with the government after they banned public events until 31 August, because their BCD football proposal wouldn't fall under that. Yet you are here suggesting we won't have football until August 2021 when most leagues are already thinking about restarting asap. Just not very realistic, is my opinion.
It's not even gonna be just "a long time" before we return to what was normal like you say - we might never get back to that point. But we will adapt, find solutions, and life will return to "normalcy" as much as possible. Football is also a part of that.