The last episodes, where Loki mind-controlled Rias, no longer happened as well. It's different because it's ret-conning certain events to reflect the light novels. Irina was no where near Issei when he went to Jauggernaut Drive in BorN, and the Oppai dragon song was AFTER that, not before! I am not as much worried about the anime style as I am the script. We waited 3 years for this? I hope it gets better. What in the world did I just see? I know the first 3 seasons well and this 'recap' didn't even follow the original anime.