Couple things I'm noticing with the current meta:
1. More comps with Lucio and Mercy on the same team.
2. A Pharah with a Mercy tailing her constantly.
3. McCree still fanning that hammer.
4. Winston is becoming more of a common sight, especially with KOTH and Payload gametypes.
It seems Zenyatta is more geared toward going on offense while Mercy is more for defensive set ups. That's not always the case but it is common to see.
I can't wait till they nerf Tracer (which they won't). It's not like the skill ceiling for playing her is fucking low. The way Tracer is now, she is low risk and high reward.
McCree is just as crazy (flashbang + fan hammer = GG no RE).
Also, Genji can eat a dick.