I think baseball will be back. It'll obviously be a shortened season, but they should be able to return.
As to Brazil, don't forget that countries south of the equator are now in their fall season and nearing the start of their winter. They had far fewer infections in their summer (our winter) but with fall and winter now coming their infections are increasing.
While this virus isn't a cold or flu virus (though it's related to four of the common cold viruses that are also coronaviruses), it's behaving in much the same way where it decreases dramatically in warmer weather then surges in the fall and winter. The old axiom that sunlight is the best disinfectant seems to be holding true as we head into our summer months here north of the equator. It's surging in many of the areas south of the equator while it seems to be ebbing a bit in the areas north of the equator.
Fly!!! Eagles!!! Fly!!!