[Spoilers] Question for anyone who's seen new movie

[Oldpig]

I personally haven't seen it but I know that menma (au naruto) is the son of Kushina and Minato. what I want to know is Why does it seem from the previews that they are treating Naruto as there regular son. Do they know that he is from the regular universe or something? Just kinda confusing.

 

[Trollsage]

I was wondering the same thing, but was content with waiting and finding out for myself..