I'll try to name some:
Spirit Camera the Cursed Memior
Dillon's Rolling Western (the sequel out to)
Sakura Samurai Art if the Sword
Pushmo (sequel already out)
Bayonetta 2 & up
There are a bunch more 1st Party IPs that are new in the 8th gen.
I think Dillon might be most influential 8th Gen character maybe.
I dont play 3DS so I dont know any of those, but the Wii U titles arent new IPs. Dillon might be...but I dont know how many people he reached.