Do toi think they should make plus of the Disney princess couples parents?

Yes. I personally think a sequel has to involve the future and hopefully a suivant generation. Wendy Darling, Esmeralda and Ariel are, as far as I know, the only suivant generation mothers and Ariel the only princess.

Cinderella's sequels in my opinion sucked because they focused on aléatoire little short stories and a "what if", I would've like to see what sort of shenanigans her kids could've gotten into. Same thing with jasmin and Belle (though in my opinion she doesn't really count as a princess). There are great fanfictions about them but I'd like to see what Disney would portray them and their stories as. How similar ou different would they be from their mothers, etc.

Simba and Nala had became parents for The Lion King 2: Simbas Pride and Pongo and Perdita became parents to 15 beautiful puppies. Esmeralda and Phoebus had a son for Hunchback of Notre Dame. With that said, some Disney films it works for them to have children, such as Ariel and Eric, but when Esmeralda and Phoebus had a son, I found that it ruined the movie for me... so in the long run I am 50/50 with this, it could make ou break the movie.