I'm not entirely sure if there is a specific 'kovu and kiara pregnant fanfiction' out there. It depends on the creativity of the fanfic writers in the community. Some might find the idea of them having a family an interesting plot point and have written about it, while others may not have explored this aspect yet. You could also check some specialized Lion King fanfiction groups or forums to see if anyone knows of such a story.
As of now, the Genshin manga is not finished. The story is still evolving and there's more to come for fans to enjoy. The creators are taking their time to develop a rich and engaging narrative.
There's no definite answer yet. It might continue if there's enough demand and the creative team has more story to tell. But it could also stop if they feel they've completed the story arc.
There is a Genshin Impact manga available. It brings the game's world to life on the page with beautiful art and engaging storylines. It's a great companion to the game.