With the amount of dungeons FF14 has (most of which are of little relevance unless levelling or completing roulette's), I can't be the only one who would love for that big dungeon pool to come back into prominence in the form of difficulty up-scaling. I hate to take a leaf out of WoW's book but anyone familiar with Mythic+ will know the type of system I'm getting at.

If they didn't want to be seen as copying such a system, why not put the 20 bazillion dungeon bosses this game has to use in a similar fashion? Think of it like starting off with a random dungeon boss at standard difficulty. If slain, you're given another random boss, yet the difficulty peaks upward with each kill -- rewards given for the amount of bosses a team manages to slay before the inevitable wipe due to infinite difficulty up-scale.

In short, there's a wealth of dungeons in the game that only get re-played via roulette. I don't see why they can't recycle that content using more re-playable/relevant means.