re: SIAP, but it looks like RDJ will return to the MCU on Disney's steaming Ironheart show

Here is how I would do this for maximum emotional impact.

What if, after the Leipzig Incident (Civil War), Tony started to feel his mortality and created an AI similar to F.R.I.D.A.Y, J.A.R.V.I.S., and J.O.C.A.S.T.A. called T.O.N.Y. that was meant to be delivered to Pepper to help her run Stark Industries in the event of his death and what if it was made before Infinity War?

Now fast forward and have Pepper give Riri the AI to help her better design her armor.

Imagine this exchange:

TONY - You know, Riri, if I had a daughter, I'd want her to be just like you.

Riri - Ummm, Tony

TONY - What? Is it something I said?

Riri - Tony, I'm not sure how to tell you this...but Tony Stark did have a daughter.

TONY - I don't understand. Is there something wrong with my programming that I can't process this?

Riri - When Iron Man died two years ago, he left behind his wife

TONY - Pepper, I know

Riri - and his daughter, Morgan. She's 7.

TONY - So I was created to be a deadbeat dad....

Riri - TONY, it's not like that...

Riri - TONY? TONY?