For interested parties, the Shields of the Sorrowfell from Khaldun and the Mourners of Saerun Road from Eberron entered the Skyfall delve with the intention of clearing the top level to make the first floor habitable, allowing the Planar Trade Consortium to create a settlement for future adventurers to mount expeditions into the depths.
So far, the Shields of the Sorrowfell have retrieved a golden statuette of Cthulhu. No word yet on what the Mourners of Saerun Road found.
She of the Dying Light told the Shields and the Mourners that one of their number, Iathacl the Storyteller, obtained a suit of powered armor and disappeared into Skyfall delve. Whether he went exploring and died or pulled a Colonel Kurtz and went up river is unclear.
Interested parties may read more details here.
Once both parties clear the top level, the goal is to open up the dungeon to ConstantCon, probably using Labyrinth Lord. Any updates or relevant information about the megadungeon of Skyfall delve can be found on this blog by way of the #fourthworldproblems tag. I will also try to whip the Obsidian Portal page into shape relatively soon.