Clip of Ariana and Cynthia saying "Ozma" and then immediately pretending not to know what it is

https://www.youtube.com/watch?v=BAyYL8CBGTM&t=115

Edit: I've already been convinced that this is not a reasonable or likely explanation. I'm leaving the rest of the post intact so that the title and comments make sense.

Am I reading too much into this, or could they be implying that Princess Ozma (the heir of the monarchy that the Wizard overthrew) is going to be involved in the second film somehow? This is from last month but I haven't seen anyone talk about it.

The Ozma monarchy line is referenced in the first movie through the text on Dr. Dillamond's blackboard.

Interviewer: I can't believe [Jon M. Chu's] baby arrived on the day of the [Los Angeles] premiere.

Ariana: i can. i can

Cynthia: It's a good omen. I think it's a good omen.

Interviewer: Don't you think they should include a little Wicked nod in the name a little bit?

Cynthia: Oh, but that already happened.

Ariana: he already has ruby

Cynthia: He already has Ruby.

Interviewer: I know that, yeah. Willow... and yeah, yeah.

Cynthia: That's what I'm saying, so I think... I think we can expect that. Maybe.

Ariana: yes

Cynthia: We'll demand it. Maybe.

Interviewer: I love it.

Ariana: little baby ozma

Cynthia: Little baby Ozma!

Ariana: no im kidding. i dont know

Cynthia: No no no. We don't we don't we don't we don't know. We don't know. That's not right.

Ariana: thats nothing. i just made that up

Cynthia: Yeah.

They could also have leaked the name of Jon's child, but that doesn't seem to be what's happening. (Edit: As mentioned in the comments, he's said his child is named Stevie Sky.)