Why Making a New Class is Actually Hard

1. New items: 400-450 + new items would be added, with new mythics and everything, spanning levels 1-120
2. Rebalanced Loot System: Devs would have to completely change the loot system to give the new weapons a change to be dropped/found in chests
3. New abilities: A whole new 75-100 node ability ability tree, with new ultimates
4. New Textures: A slew of new textures for the weapons
5. New Ability VFX: A whole new class of ability VFX for the spells
6. Archetypes: Three all-new archetypes each with different playstyles

 

We already have a thread about this. One that you actually commented in, btw.
https://forums.wynncraft.com/threads/to-make-a-new-class.325576/