Things that would happen since Peter Hale is erased but didn’t:
1. Paige would be alive
2. Derek wouldn’t have killed Paige leading him to never have blue eyes
3. Laura Hale would be alive
4. Scott McCall wouldn’t be a werewolf
5. Lydia wouldn’t be a Banshee
6. Malia would never have been born
7. Allison would currently be alive since Scott was never turned
8. Peter was the benefactor, so season 4 doesn’t exist
9. Kate Argent would never have been turned
10. Peters ultimate goal was to make Beacon Hills into a supernatural sanctum where he can control the supernatural world. So…yeah none of that.
11. Where’s Jackson then?