Even though as I am typing this the mod is only about an hour old on the Workshop, I do have quite a lot of my suggestions I have that would be pretty neat to see from the mod. It doesn't have to just be mine, everyone can share their ideas down below.

Suggestion 1: The King/Queen of the Night and their Crown. With the excitement for the upcoming Nightar mission, I have been biting to know what we could see from the ending. A boss fight against the King of the Night mentioned in the throne's description in Ran's Castle? I would love to see that kind of fight as it would test our capabilities as a Nightar and give purpose to the name of the King Slayer armor. But what if there was a bigger reward to said victory? Possibly having the King have a chance to drop a Nightar boss weapon? A crown? Maybe even make it so you need to beat the king so he drops a fragment of his throne and you use that to purchase the Throne from Ran? Nothing says I kicked you into the dirt like stealing their throne. xD

Suggestion 2: Nightar Special stats and tech. Ok, so in terms of tech, I am aware that they are against technology, but I am thinking having these tech considered as a sort of enhanced human abilities, like for Morphball, they turn into a cloud of darkness that can fit through any crack like a liquid, immune to damage, with taking your entire energy bar upon activation as balance. For dashing tech, possibly shadow clones, turning invisible at the end of your average dash leaving a dummy of you to take one hit or to keep enemies distracted for about 3-5 seconds to allow for strategic planning in the breath of darkness. Lastly for Jumping tech, a rocket jump like ability that causes an microexplosion of shadows that damage any nearby enemies within the radius. (I would recommend making the tech seperate as Tech mods can cause a lot of problems, at least for me.) As for the Special Stats, I had something similar to Frackin' Races on my mind except you do it for your own character. Possibly health regen when it is night time or in the dark, increased energy and energy regeneration, a reduced version of Thorns active by default, etc.

Suggestion 3: Nightar Tools. Not much to this one, just would be pretty cool to see Nightar takes on tools like the Hoe, mining tool, and grappling hook.

Suggestion 4: Nightar Capes? Would be cool to have capes that matched the different armors that comes with the race, possibly even giving the capes their own stats or something.

Suggestion 5: Nightar Vehicle? Nothing high tech, probably just a giant sword that floats or something would do.

Suggestion 6: Nightar Colonies. I know these are already planned, but I was wondering if they could be placed only on Shadow Planets, or if it is either an all or none deal.

Suggestion 7: Nightar Pets/monsters. Not the space one, I was thinking more along the lines of having a merchant in the Outpost sell pre captured monsters fitting the whole Darkness theme, like one of those shadow Poptop's in the Frackin' Universe questline or something.

Suggestion 8: More Casual Nightar Attire. I am all for wearing armor and suits, but I would enjoy more cosmetic outfits that fit their way of life.

That's all I have for now, will try to update as I go. See ya'll later!