Progression is the same from the start of the game through getting blaze rods

Can go to the aether and get aethersteel, step up from netherite 

Portal requires 12 different kind of eyes, all found in different structures, or from different bosses (overworld, nether, aether, possible warden dimension)

Stronghold more advanced, has puzzles and bosses or mobs to fight 

Then ender dragon is way harder, but is only one of 4 bosses

Progress 2 other hard bosses in the end

All lead up to fighting one big boss

In the end you can get enderite, upgrade from aetherite

Fight main boss, respawn able, every time you kill it drops one heart

heart used to craft guardian forged gear

Diamond > netherite > aethersteel > enderite > guardian fored

Progression is rlly hard, one aethersteel ingot costs a netherite ingot and 4 aethersteel scraps, so it costs 4 ancient debris, progression multiplies like this. 

Add some way to require going through every tool to get to the end, no speedrunning bosses with just diamond

Bosses and mobs become harder, to make all the new tiers of progression

encorperate betterend mod for biomes, mobs

encorperate big globe mod for terrain gen

encorperate nullscape

encorperate existing aether mod


Ores

Aethersteel. 
Heaven’s Debris found in aether. 
Upgrade from netherite in smithing table.
Craft with: 1 netherite ingot surrounded by 4 Aethersteel scraps


Enderite.
End’s Debris found in the outer islands.
Upgrade from Aethersteel in smithing table.
Craft with: 1 Aethersteel ingot surrounded by 4 Enderite scraps


Guardian Forged
1 heart acquired from killing Guardian of Ender
Surround heart with eyes of ender to create End’s Essence
Use forge in final boss arena to upgrade from Enderite to Guardian Forged tools

Bosses.

Ender Dragon, now called the mother.
End island is updated.
Fight is much harder.
Must take mother’s egg, used to summon guardian of ender.


Eye of the Guardian.
Found in a new structure called the tower
the tower designed to be hard to get through, puzzles, hard mobs, and more
EOTG is stronger than the dragon
drops a guardian tear, mix with dragon egg in crafting to make incubated guardian egg


Eater of Void
massive worm that you find in a colluseum
same level difficulty as EOTG
drops Void Scales that help craft a pedastal


Guardian of Ender
very hard, multiple stages
summoned by putting incubated guardian egg on pedestal in the center of the arena

bosses based off of end reimagined mod described somewhat in this video:
https://youtu.be/UBhjTFGZTsw?si=vw7naikKCTNGXAtV