Zenyatta might be a top tier pick in Season 3.

With all the changes that went live in the last patch a lot has changed, I think that this might put Zenyatta back as one of the top tier healer picks (I explain why in the video). He can also add value by speeding up the rate at which Reinhartd shield is destroyed as Zen himself does provide a good amount of DPS. And since Ana was nerfed, biotic grenade having an impact on Transcendence should be less of an issue. And since Roadhog and Soldier are in the meta means that they can heal themselves, but does that mean Zen won't be as much of a crutch when it comes to healing because of it? What do you guys think?

Here's the video: https://www.youtube.com/watch?v=yiwYpxixIcw&t=4s

What Ana nerf are you talking about? She has the best burst healing still and her grenade can still counter transcendeance. Ana is a must pick. Also Lucio is the only support to provide movement speed. So Ana and Lucio will stay in the meta.

Ana, Zenyatta is used combo in defense atleast in tier2 level (Talking about scrims rn) . Since zenyatta is good pick versus Dva (Discord) :)

He might, but not because of the major factors you listed.

Looking at the dreamhack tourney going on he and Zarya is mostly a good counter to the triple tank meta, at the same time Zen being a counter to as consistently as before picked Zarya, but not because of her shields, but historically - her ult.