Brazilian flights are still all "scheduled" for SEP.
However the closer we get to AUG, the more I doubt this will happen. With COVID still climbing steeply uphill in both countries, entry restrictions in both countries are expected to remain in force preventing tourism or business travel. Given the amount of Brazilians living here and visa versa, it is reasonable still to expect some flights may resume in SEP, even if the rights to use them are somewhat limited.
Still not seen a confirmed schedule beyond 15JUL but AFKL and IB flights will continue through AUG and gradually increase frequencies.
There are also increasing rumors that a few more foreign airlines may chop EZE / Argentina altogether soon.