Mai in the future...

[Let's Go Fearless!]

So the poster and the preview for the next episode pretty much said it. And since she's not old yet, it's possible she got wished to turn kid just like in the present? Perhaps, Trunks found a way to get into new Namek and take Dende with him to revive Shenron?

 

[Southern Gothic]

I don't see why not. Or they just won't mention it at all, lol, which isn't at all outside the realm of possibility. Maybe he found a way to restore Earth's dragonballs by bringing a Namekian back, since he saw them do it in the main timeline.