I'm just wondering what would happen if Griezmann really moved to Atletico Madrid. Barcelona left Suarez the previous season. Many said he was old, so leaving him was the right decision. But with the help of Suarez, Atletico Madrid has won the title this season. If Griezmann joins Atletico Madrid, Atletico Madrid will be even stronger.
I don't think there will be much change to Barcelona's game if Griezmann rejoin Atletico Madrid. I know Griezmann has contributed to Barcelona with a number of his goals, but it doesn't look like he will have much of a problem if he goes to Atletico Madrid again. It's true that if Atletico Madrid get Griezmann back then they will be much stronger than last season. Messi and Aguero and Depay are likely to help Barcelona throughout next season. I wouldn't take it too seriously because Barcelona is still the top team out of several team in the Spanish La Liga every season.
If Griezmann leaves Barcelona at the moment and joins Atletico Madrid, Barcelona will have no problem. Barcelona now have plenty and extra Strikers. Barcelona may be planning to release Dembele or Griezmann. But I was saying that Atletico would be stronger if Grismann will join. And next season Real Madrid is forming a very weak team compared to the previous season. So with Griezmann in the squad, Atletico Madrid's chances of winning another title will increase.