Maelstrom of Chaos as alternative to current endgame

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SkyCore wrote:

Anyone ever play disgaea? That had an amazing endgame. It revolves around entering a metaphysical reality 'inside' an item such as a weapon, piece of armour, even mundane objects. Each item(the rare items at least) had 100 randomly generated levels. Clearing a level increased the inherit values of the item.
Occasionally you may come across an aspect of the item which you can dominate. Doubling that associated attribute of the item. Also granting the ability to MOVE that attribute to a different item.
A high level items deeper levels became insanely difficult. A true challenge. Especially the final boss on level 100 which(if defeated) drops a similar item as the one currently inside..but one grade higher.
Something similar to this i think would work very well in PoE.