Well, in many ways you can get simple AI to work with any camera. But I wouldn't count on it being a "thing". To speak from experience it also doesn't work very well.

So AR games will never be a thing on P smart Z? O7

Yes you need google AR core which is only compatible with very high end smartphones.

Right now it doesn't for some reason, I'm really looking forward to some games with AR elements but I'm worried I won't be able to play them. Is there something stopping it from having AR?

Will the Huawei P smart Z 2019 have AR compatibility?