Haven't reached the new content yet strictly speaking but wanted to offer feedback and some bug reports.
Feedback: loot drop balancing is a lot nicer now overall, I appreciate the big chests at the end of dungeons, makes bosses feel better.
Mimics are actually pretty well done. Extremely funny that the end of dungeon chest can also be a mimic, I dunno if that was intentional but you should keep it even if it wasn't.
Love the unique legendaries, even though I don't use most of them picking a new one up always makes me go "oh hey I already have ideas for how I could use this to do something really funny".
I believe you buffed the raid bosses? Good call if you did in fact do that and I'm not just imagining things, they were a bit too easy to take on compared to the normal dungeons before.
I'm looking forward to reaching dungeons 3+4, the changes so far are nice.
Bugs I've find so far (for reference I'm still playing android, dunno if any of these carry over to the desktop versions):
Bug report: page arrows in the flag decal selection windows on guild start are reversed
Character creation does not save name properly
Steal still does not interact with the loot filter properly
Relatedly, steal has a bizarrely high chance to give unique legendaries. Is it by any chance counting them as separate items in the pool from the regular equips?
Flip Screen button has to be turned off then back on again when you exit the game and come back
Locking and unlocking gear in the inventory screen sends you back to page one and changes which gear is selected (though the correct one will be locked/unlocked before the switch)
Nothing game breaking. Just the occasional minor annoyance. Hope this helps, and I look forward to the full release!