The video shows you will observe the modder's Tarnished breaking several jars when he runs into them. In the middle of the corridors, you will find a huge Colosseum that has thousands of seating. In Elden Ring Runes the event that the Lands Between weren't a barren desert, it would have been the perfect spot to showcase your boss-killing abilities.
There's still a lot of fun to be having in the area even if you're unable to hack through the doors. It's the Northern Limgrave colosseum was the first place that has tipped players off to the importance to the door. Outside, there is an NPC who complains about the closed portal. Modder Garden of Eyes was successful in finding the Duelist's Furled Finger that allows PvP-related content just in front of the door. The area was also attacked with the Recusant Henricus when they were searching for the door, so be cautious when you're contemplating exploring the entrance. There is the possibility of fighting up to 3 Duelist Knights from the Great Jar near the Caelid colosseum, even when you're not hacking.
The colosseums, which are interestingly appear as zones in the maps, appear far too full to be cut into content, leading to the raging speculation of the community about the possibility of an Elden Ring DLC. Some are also pondering possibilities of having the ability to combat special bosses in buy Elden Ring Items an upcoming update. Whatever it is, or something else altogether is clear that players want additional Elden Ring content.