?
Sports have been back for a while now:
1- NHL: They played in a bubble (2 cities) last playoffs, with no fans
2- NFL: Full schedule, with 25% fans
3- MLB: Same as NHL
4- NBA: Playing in a 1 bubble city, no fans
5- Euro Soccer: Full schedule, and 50% fan bases
Concerts? Once there's a vaccine.
conley39
Sports are already being played although crowds won't be back until a safe and effective vaccine is in wide use. Concerts are the same, for now they're on-line.
choko_canyon
You just answered your own question: after coronavirus.