I’m not sure if the developers are able to make worlds based off of something like this but if they could I would definitely want a world based off of this: https://www.youtube.com/watch?v=7Pd62f1FLYs
It’s everything one could want with a planet and I’m sure the community would have a blast playing through it.
Skyworlds like the ones shown are definitely possible though (I´m currently working on one )
And it seems like something similar to your creature will also make an appearance in the game:
This is the (currently planned) creature set for the game (along with variations within each type of creature) and the big guy to the right will be a big flying creature.
(The devs even mentioned that we might be able to use our grappling hooks on them)
Personally, I don’t think that flying laser narwhals would fit too well into the theme of the game.
But maybe there’s going to be a variation of this creature that is a bit more flashy…
How about the world I’m suggesting? Would that have a chance in the game? (Especially the seahorses with castles on their backs and the rock golems with star stones on their chest)
Why do you want to make a copy of an existing game in this game? You know the makers of that game own the rights to use the creatures you described, and Wonderstruck does not?