implementing these into new nether/end dungeons with possible bosses sounds like a great project for the PvE and Build teams to collaborate on. This is my main grope for the current state of Loka as of now, so Mr. LCR Lurnn please take this into consideration.
This was in reference to something similar to rust keycards, basically giving you a chance to get a key to a higher tier loot room after clearing the lower rooms. Here's a short video for these.