I've created a post on Reddit like 3 days ago, but instead of copy pasting the link, I'll just put the text here.
- Skystealer accessories being an endgame gear (or at least 4 out of 6 of them) but crystals are almost unobtainable (only available in the previous meta dungeons AND stage 1-2 of the new dungeon)...
- heart's upgrade item has been changed from sacred vial to sterling scale, the only source WAS the Aerodrome and the Substratum (Demonsbane version) and only from stages above 40, AND it also was the tradeable version so it was better to sell them than use them. And now it's gone - no way to upgrade heart...
- soul has got a brand new tier yet the upgrade cost wasn't reduced (or rather "adjusted") at all (same with pet aura)... meanwhile we've got our vials and pet packs COMPLETELY REMOVED from events which limits us to 2 of each per week, which is TERRIBLE (and the cost of upgrading new soul and pet aura not to be commented)... Meanwhile almost all sources of evolved stones got removed by now, can't really farm them anymore (except from MSP I believe, which is the most boring thing in the game) and transmute own oils...
- the Aerodrome and the Substratum psyches are no longer available (well... only exchangeable for tokens from weekly/season rewards which will take forever to gather), and then HoT psyches with almost 0% drop rate (I've done almost 200 runs, got only 4 psyches from the boss, and 0 from chests... also personally NEVER seen any psyche for a weapon), meanwhile challenger tokens required for grand psyches were switched from personal loot to bid which makes it even harder to obtain (well, again, exchangeable for tokens from weekly/season rewards which will take even longer to gather, and then we won't pick psyches instead)...
- switching from Skystealer to Starcross requires either a Skystealer item to be at least +11 (which costs too much) to transfer the mythic bonus (to +6) and psyches, OR you have to upgrade Starcross from 0, which is fine, BUT got to get and use all psyches again, which, again, are unobtainable... which means we're <censored> in both ways...
- the chances to upgrade Upsurge weapons and new soul/pet aura tiers are a big joke, and the cost is even a bigger one (example: let's spend over 1k gold or 15 vials/oils just to fail an upgrade)
- some stuff also removed, like material chests from daily challenge, or 1 mil xp charm from login rewards
- most likely more that I can't remember atm