I am feeling the same way. Yet i belive that engame has nothing to offer then pure grind.
The only challage is to face two 'mini bosses, bosses whatever you call them, (this big lizard-ish thing and guy with the shield).
I like the game, so far i still have a will to play expeditions.. but right now im lvl 60, and overweling boringness starts to corrupt my gameplay.
Campaing bosses would be something. It was a true challage, which I would love to face once again... but this time, more powerfull

I support the idea! But besides that i'd like the "mandates" and "expeditions" to play not just on underground maps. I'd like to do missions very much in the bright forest (Green bluffs) template, and on the second Act's darker forest (Helmshire) and all of the open-sky templates (even in the desert).
I guess they are not available yet, because their randomization is not ready, but i'd like to encourage the devs to make them part of the Endgame missions!
Later it would be wonderful, if Stormfall's exits wouldn't be closed - make the earlier promised OPEN-WORLD available in the Endgame.
Let us journey through the Farmlands map to new territories, even with little quests. Not big-big story new Act what i'd like - but a large explorable area with little separate missions - to begin making and infinite OPEN-WORLD around Stormfall without restrictions on the route - Because the Act I-II-III one-and-only-one way to go system is very restrictive and uncomfortable.
It would be great if Stormfall sewers could be explorable again, but in deeper (horrendous) depths!

This way yet Wolcen Studio could fulfill their promise about the Open-World! I hope they don't let their promise fade to nothing.