Even if he is no longer evil, this new hero of justice still has elements from Kamen Rider Evil that carried over to Kamen Rider Live. These elements are: the undersuit, the Twoside Driver, and the Bat Vistamp. As for their younger sister, Sakura, it seems like she's in a special rivalry with Aguilera, the leader of the Deadmans.
[Source: HeroShock, Ben77878871 (link 2)]
UPDATE 1 (10/28/2021): Added more images.