So what can we expect from the next PTR?

Reaper doesnt really have a skill ceiling. Reapers in plat barely change from reapers in gold. In low ranks he feeds of people not understanding how to deal with him. The higher you climb the more you reach the natural limit for Reaper.
What Reaper needs is a rebalancing which gives him a skill ceiling and makes him more useful in higher ranks without destoying lower ones.

Symm buffs hopefully

Hopefully Hero 30 will have some anti heal ability that can’t be eaten by Dva’s defensive matrix. It doesn’t have to be full on no healing at all for a set period of time like Ana’s anti nade, but it could be a percentage or tick per second reduction that prevents the Goats comp from sustaining itself.

Also it would be cool if Reaper’s primary fire had some sort of anti heal effect like it’s been shown to have in the lore.

Basically the only way to destroy the Goats meta at this point without also destroying existing heroes is to add more anti heal abilities to the game, specifically ones that can’t just be negated by Defensive Matrix easily.

The damn Mei bugfixes that seems to be more vaporware than Half Life 3

30 seconds is a long time in Overwatch