Hugh has taken up becoming the new leader of Team Plasma after Colress left for Alola.
N's the champion, having learned from his mistakes, E4 is Shauntal, Caitlin, Benga, and Zinzolin, who's decided to follow N.
The main villains are the Shadow Triad, lead by a man who sees Ghetsis' views of combining Kyurem and one of the dragons as the only way Unova can progress in warpower, deciding to use it and eventually find the other one.
Zekrom and Reshiram get new forms, Overdrive and Overheat forms. Both have Teravolt and Turboblaze, with the added effect of causing double power on Electric and Fire moves respectively, and making normal moves Electric and Fire depending on the legend.
New megas for multiple Pokemon, like Beeheeyem, Reuniclus, Gothitelle, Braviary, Mandibuzz, Hydreigon, Haxorus, Beartic, Accelgor and Escavalier.
New episode similar to Delta Episode featuring the Original Dragon and Genesect, dealing with a last ditch attempt at winning by mega evolving Genesect.
The final challenge for you awaits at the top of Reversal Mountain, with Hilbert/Hilda at the top, with a team of Emboar, Serperior, Samurott, Volcarona, Musharna, and Tornadus/Thundurus, depending on the version.
