After some internal testing, the decision was made: Bastion will be 10% smaller in Overwatch's next season. "Though I was initially (and correctly) told it would be a difficult change to implement ...

Overwatch's DPS mains will see the most changes in Season 17 with some serious Healing Reduction updates. Sombra and Freja are in the dev team's line of sight, and Bastion's size is shrinking.