Quote Originally Posted by Valic View Post
Duties don't HAVE to be trivial grinds every single time.
Unless we're talking about bosses, which we're not as we're talking about dungeon layouts, they will never get too difficult that they wouldn't be trivialized even within the same expansion. (And even dungeon bosses are not immune, see the final boss of The Burn even during Stormblood.)

And I doubt they would make dungeons that much more difficult considering dungeons are required content in this game and dungeon roulettes are a central part of the day-to-day gameplay. They even provide easier modes for solo instances now, so think about that philosophy first when considering new ideas for dungeons.