I have an interesting idea for a raid structure, meant to run paraellel with the 24-man raids and the 8 man gauntlets, but arguably different as well.

The idea is an ongoing raid, a series of dungeons (either 4 or 8-man groups) that persists and progresses by the expansion with it being expanded and eventually finished over the course of 3-4 expansions, with a metaplot tying the dungeons together (maybe something to do with the 1st-3rd Umbral eras or the 6th?)

The concept is simple, a side-quest that isn't contained in a single content cycle and a raid that cannot be "finished" in the same expansion, a way to tie together the expansions beyond the MSQ, and also an alternative for Raiders to get their the max ilevel gear (be it horizontal or vertical).

What are your thoughts? Woudl this idea work or would it be impractical to implement?