In a new video from Blizzard, Overwatch overlord Jeff Kaplan discusses changes that are now in testing on the Overwatch PTR, as well as plans for other changes they may be making in the future. The description includes a handy index:

Game director Jeff Kaplan discusses PTR hero updates for Doomfist, Mei, and Sombra.

00:01 - Jeff welcomes listeners to the Developer Update
00:50 - Mei changes in the PTR
01:54 - Upcoming Sombra changes in the PTR
03:50 - Doomfist change in the PTR
04:40 - Ideas on new abilities for Hanzo
07:15 - Thoughts on Symmetra and Torbjörn
7:33 - Jeff thanks the community for their input and invites players to try the new changes on the PTR