The Writer's Guild website has the writing credits for season 3 posted.
Season 3 (2021 - 2022)
3 - 1 Episode 3-1
Written by: Terry Matalas
3 - 2 Episode 3-2
Written by: Christopher Monfette & Sean Tretta
3 - 3 Episode 3-3
Written by: Jane Maggs & Cindy Appel
3 - 4 Episode 3-4
Written by: Terry Matalas & Sean Tretta
3 - 5 Episode 3-5
Written by: Cindy Appel
3 - 6 Episode 3-6
Written by: Christopher Monfette
3 - 7 Episode 3-7
Written by: Jane Maggs
3 - 8 Episode 3-8
Written by: Matt Okumura
3 - 9 Episode 3-9
Written by: Sean Tretta & Kiley Rossetter
3 - 10 Episode 3-10
Written by: Terry Matalas
All but Sean Tretta (a 12 Monkeys alum) worked on season 2.
Kirsten Beyer (VGR novelist turned STD staff writer from season 1 onwards), Travis Fickett (Terry's former writing partner), and Christopher B. Derrick (who co-wrote S2E09 with Matt Okumura) look to have been on staff for season 3 without any episode writing credits.
I'm somewhat less optimistic for season 3 now seeing some of the names linked with season 2's worst episodes here, but hopefully the showrunner makes all the difference.
Season 3 (2021 - 2022)
3 - 1 Episode 3-1
Written by: Terry Matalas
3 - 2 Episode 3-2
Written by: Christopher Monfette & Sean Tretta
3 - 3 Episode 3-3
Written by: Jane Maggs & Cindy Appel
3 - 4 Episode 3-4
Written by: Terry Matalas & Sean Tretta
3 - 5 Episode 3-5
Written by: Cindy Appel
3 - 6 Episode 3-6
Written by: Christopher Monfette
3 - 7 Episode 3-7
Written by: Jane Maggs
3 - 8 Episode 3-8
Written by: Matt Okumura
3 - 9 Episode 3-9
Written by: Sean Tretta & Kiley Rossetter
3 - 10 Episode 3-10
Written by: Terry Matalas
All but Sean Tretta (a 12 Monkeys alum) worked on season 2.
Kirsten Beyer (VGR novelist turned STD staff writer from season 1 onwards), Travis Fickett (Terry's former writing partner), and Christopher B. Derrick (who co-wrote S2E09 with Matt Okumura) look to have been on staff for season 3 without any episode writing credits.
I'm somewhat less optimistic for season 3 now seeing some of the names linked with season 2's worst episodes here, but hopefully the showrunner makes all the difference.