A BETTER "LATE GAME", EVERYONE PLEASE READ THIS AND VOTE MEE :(

This is probably my #1 request.

After:
Netherite → Ender Dragon → Elytra → Wither → Beacon

there isn't enough progression.

I'd want Minecraft to keep giving me reasons to play for hundreds of hours through:

• End-game exploration
• Massive structures
• Rare bosses
• Advanced building materials
• Difficult challenges
• Collectibles
• World events
• Long-term progression

And one controversial request

Don't add features just because they're flashy. 

I'd rather get one deeply developed mob, biome, structure, or mechanic that interacts with 10 existing systems than 10 random items that I'll forget about after two days. (Chaos cube, boring for single player world)

Minecraft's greatest strength is its interconnected systems.

So my overall feedback to Mojang would be:

"Don't make Minecraft bigger just for the sake of being bigger. Make the things already in Minecraft matter more."