I’m not Steinberg, but this article of Nuendo 10 says that it will have Variaudio 3 which Cubase 10 currently has: Steinberg Nuendo 10 lands and promises an even faster workflow | MusicRadar
From what I understand all of Cubase 10 features will be in Nuendo 10 and also future releases of Cubase won’t take as long as it has in the past to get implemented in the next Nuendo version.