How has the meta changed for different roles (tank, support, damage) in Overwatch recently?

After the nerf to Roadhog, the balance among tanks has become more even. Several damage heroes received buffs (Symmetra, Mei, Reaper), increasing variety. Among supports, Kiriko was nerfed, and other supports (Moira, Illari, Mercy) have come to the forefront.
You can see the breakdown of changes here: https://www.youtube.com/watch?v=t1l7C35xZQw