I wouldn’t run Moira/Brigitte because they counter flankers, but mainly in a deathball style comp with Brigitte just being interchangeable with Lucio depending how you wanna approach the enemy and what their comp and the map you might be on. Rushing a triple tank line up onto a point B 2CP map with Moira’s AOE healing and Brigitte’s Rally seems hella good in theory.
Lucio moria are your support duo you throw Brigitte in as off tank type of pos in a triple tank set up.... add two tanks and reaper than points like horizon A is an easy capture
With Zenyatta still arguably the most powerful character in the game and with dive still crazy strong you probably won’t see that happen. I also don’t think you’ll see one meta strategy dominate.
I think the Sombra changes, and new hero open up opportunity for some new meta comps that aren’t dive. Which is really exciting, unless we just learn really quickly dive is still definitively better.
There could be some good team compositions that come from the recent changes but hard to say till people actually start playing her in ladder.