They actually already found the panorama world seed [1]! Currently they are working on figuring out what the tallest naturally generated cactus in Minecraft is and so far they found a world seed with a cactus that is 22 blocks tall [2]. This project however is just a filler until they get some more work done trying to figure out how to best brute force the world seed of the iconic pack.png image [3].
[1] - https://minecraftathome.com/minecrafthome/forum_thread.php?i...
[2] - https://minecraftathome.com/minecrafthome/forum_thread.php?i...
[3] - https://www.youtube.com/watch?v=eC7f9tMslVE (Interesting bit is around 7:50)