Hellow!. I will put this other good mod on the Request, I really hope to see this too. 
Name of the mod is: "The Aurorian Mod"
Link: https://www.curseforge.com/minecraft/mc-mods/the-aurorian
Description: This mod add a new dimension with is called "The Aurorian" is a old dark cold forest u can find Dungeon, Bosses, New ores, and more. The mod is in Progress, so the author is making constantly updates. This mod was created recently (November 2019) and is amazing how the owner is working on this. I test on anothers mod and work great.