So with the next and probably second to the last quest in the relic line...

[Niwashi]

You know, I'd love to see them do exclusive relic content again, like the Hydra and Chimera fights.

If it's group content, it would work better on the first stage than a later upgrade stage. (So maybe the first stage of the level 70 relic line?)

To (usefully) put it into a roulette, they need to expect most players to unlock it. Hydra and Chimera could be put into the Trials Roulette because they could be fairly easily unlocked with just the first Relic quest. It's a lot easier to ask that much from players unlocking Roulette content than to ask them to go through several relic upgrade steps first.

And if it's not in a roulette, people would do it once while upgrading their own relic, or at most once per job. Numbers wouldn't be high enough to keep the queues moving, particularly not after a significant amount of time has passed and it's no longer the latest content.

Some brand-new relic-specific but solo instances, on the other hand, could be a cool addition. They don't have the constraints about keeping queues moving.

Sadly this won't happen ever again. Yoshi has stated in the past that too many people had trouble with the trials that were part of the old relic.

The Hydra and Chimera ones? I thought those two were both pretty easy. Several of the other trials and dungeons needed later are harder, as are some of the ones needed to get through the MSQ.

And anyway, if those particular ones were harder than SE likes, they'd only need to make any new ones easier. If they find the very notion of it being a trial to be too hard for this game, then they have more problems to worry about than just the relic lines.