Dota 2 dataminer showed Mega Treasure interface

Possible concept of the future "NoBP"
This is just a guess and the information is based on a file that hasn't changed since it was released.

Mega Treasure - a file with this name appeared along with the Nemestice battle pass. Its mechanics are simple: each level of the Battle Pass guarantees one scrolling of a conditional treasury, from which fragments (hereinafter ⭐️) of various categories of rewards fall out. By dialing a certain number of ⭐️ in one of the ranks, you get 1 random item from this rank. Also, unnecessary rewards can be replaced with Choice Tokens (hereinafter ✨), which allow you to get 1⭐️ in the selected category.

There are 9 categories in total:
Receiving rewards from 2nd to 5th rank gives 1 fragment of the corresponding rank

   Rank 1 - Emblem - Dropped randomly when opening a treasure chest with a 1:1000000 chance
   Rank 2 - Arcana and Personalities - Collect 25 ⭐️.
You will not receive repeat rewards until all have been received.
   Rank 3 - Main rewards (landscape, courier, towers, creeps, announcer, music) - Collect 10 ⭐️.
You will not receive repeat rewards until all have been received. Rewards can be recycled into 3✨.
   Rank 4 - Immortals - Collect 5 ⭐️.
You will not receive repeat rewards until all have been received. Rewards can be recycled into 2✨.
   Rank 5 - Taunts - Collect 3 ⭐️.
You will not receive repeat rewards until all have been received. Rewards can be recycled into 1✨.

For the 6th category and below, you need to collect 1 fragment.
   6 Rank - Chat Wheel Phrases
After receiving all the rewards, fragments of this category cease to fall out.
   7th Grade - Graffiti
After receiving all the rewards, fragments of this category cease to fall out.
   8 Rank - Effects (aghanim, shiva, eula)
After receiving all the rewards, fragments of this category cease to fall out.
   Rank 9 - Consumables - No Receive Limit

All this may be the concept of a new "NoBP" this year. Information about Mega Treasure found Chuchello