I was thinking a different amount of bosses in a dungeon for a change...

Like there could be only 1 boss but it keeps reanimating and chasing you, like that robot near the start of FF VIII. That sort of idea made into a dungeon.

Or the complete opposite: a higher number of bosses or mini bosses in a dungeon with little or no "trash" mobs between them.

Trials could have more variation too. It seems like they always go warm up > adds phase > final phase. Maybe they should do some things with no adds intermission, just continuous boss. It could have multiple body parts to hit like the 5-headed dragon.


or it just downsyncs to top-end raidlevel gear of the approriate level
yeah, a large amount of duties just do that, which is massively higher than the minimum item level.