Border expansion

DonutSMP's world border could open to Minecraft's default 30 million, potentially soon. There's no date yet. When it does, loot from fresh terrain will flood back in, and the gear people need to go get it will sell out.

To scale

Each world today inside the new border

World today: 450K
After: 60M
Wider: 133×
Spawn to edge by elytra: 10 days

Today's world

Overworld450K → 60M

Today's world

Nether450K → 60M

Today's world

End450K → 60M

64.8M blocks across

How much new loot

Rough, from the game's structure spacing

Item	Comes from	Today's world held	New border holds	On the AH now
Elytra	End ships	350K	6.2B more	710
Dragon head	End ships	350K	6.2B more	120
Ancient debris	Nether terrain	1.3B	24T more	418
Netherite ingot	4 debris each	340M	6T more	657
Pigstep disc	Bastion chests, about 1 in 4	140K	2.5B more	14
Sponge	Ocean monuments, about 30 each	3.9M	69B more	271
Heavy core	Trial chambers, about 1 in 5 per player	120K	2.2B more	193

Nobody will loot more than a sliver of it: the point is that supply stops being fixed. Most of what today's world held is already looted. Assumes the Nether and End are the same size as the shard map today.

Expected to fall

Loot that only comes from fresh terrain. Sell before the border opens.

Item	Why	Expected	Cheapest	7 days
Elytra	End ships only. Every new End city adds more	Big drop	$650M	up39.5%
Dragon head	One per End ship, next to the elytra	Big drop	$185M	down13.5%
Netherite block	Follows the ingot	Big drop	$184M	up44.8%
Netherite ingot	Follows debris	Big drop	$20.5M	up39.0%
Ancient debris	Every fresh Nether chunk has some	Big drop	$6.89M	up52.4%
Netherite scrap	Smelted debris	Big drop	$6.2M	up34.9%
Gilded blackstone	Bastions only; follows debris	Big drop	$6.7M	up37.4%
Heavy core	Trial chamber vaults, found one by one	Slow drop	$7.78M	down0.6%
Mace	Made from a heavy core	Slow drop	$8.2M	up6.0%
Enchanted golden apple	Chest loot only	Slow drop	$3.5M	up13.8%
Sponge	Ocean monuments	Slow drop	$3.08M	up190%
Wet sponge	Ocean monuments	Slow drop	$3.09M	up195%
Pigstep disc	Bastion chests	Slow drop	$2.9M	up230%
Relic disc	Trail ruins; few sales, jumpy price	Slow drop	$7.9M	up421%

Expected to rise

What people need to go out and get that loot. Buy now, sell into the rush.

Item	Why	Expected	Cheapest	7 days
Mending book	Every looted elytra needs one	Spike	Varies
Unbreaking III book	Every looted elytra needs one too	Spike	Varies
Firework rocket	More elytras, more flying	Spike	$1.27K	up19.9%
Bed	How most people mine debris	Spike	$27.9K	up94.2%
TNT	The other way to mine debris	Spike	$6.2K	up19.1%
Totem of undying	The End and Nether kill explorers	Spike	$43.8K	down0.4%
Feather Falling IV book	Boots for flying and exploring	Small rise	Varies
Fire resistance (long)	For Nether mining	Small rise	Varies
Golden carrot	Food on long flights	Small rise	$2.02K	up28.9%
Ender chest	Carrying loot home	Small rise	$6.18K	up27.3%

Should hold

Farmed, crafted or mined anywhere already. No reason to panic-sell.

Item	Why	Expected	Cheapest	7 days
Diamond	Mined everywhere already	Holds	$8.19K	up6.6%
Nether star	Comes from wither farms	Holds	$246K	up21.2%
Wither skeleton skull	Comes from fortress farms	Holds	$71.4K	up13.7%
End crystal	Crafted	Holds	$23.4K	down15.6%
Golden apple	Crafted from gold	Holds	$48.2K	up58.0%
Upgrade template	Copied with diamonds	Holds	$37.5K	flat0.0%
Shulker shell	Already farmed	Holds	$9.66K	up25.2%
Ominous trial key	Any chamber gives them	Holds	$900K	up28.6%
Heart of the sea	Low value, small swings	Holds	$905K	up563%
Sniffer egg	Bred once you have one	Holds	$105K	up33.7%
Echo shard	Low value, small swings	Holds	$89.1K	up405%

Once it opens

Roughly, counting from the day it happens. No date yet

Day 1Elytras and dragon heads drop first
Anyone with an elytra can fly to untouched End cities straight away. Keep one if you're going looting.
Week 1Netherite slides; beds and TNT peak
Debris takes time to mine, but every new Nether chunk has some.
Weeks afterStructure loot catches up
Heavy cores, sponges and god apples fall as chambers, monuments and bastions get cleared.

Elytras turn from a sell to a buy once orders drop below the AH and listings stop piling up.

Best buy order: $670M
Cheapest on AH: $650M
Listed now: 710

Assumes the Nether and End open too; if only the Overworld grows, End and Nether items keep their value. Prices are live from DonutMarket's bots. The calls are a judgment from where each item comes from, not a forecast from the data.