Maybe add a progression in new chars creations ?

For example first char slot is 1 plat
Second is 2
Third is 3
Fourth is 4

So with the 10 plats given at the start u can get the 5 classes.

Then make it 15-20 till 10 chars
Then 30-40
Then 50

It's just an opinion. As a quite old player I have 32 chars on my account. That costed me 160 plats, so roughly 20€

Now if a new player comes and likes to level, pvp and endgame with all classes, it's really discouraging to see 50 plats for a single char

That would have been 1600 plats for me. So ~80€. I think I didn't played PL that much if chars are prices that way.

I also agree on dungeon nerfs. But not -25% damage armor.
Each campaign got different aspects

I'd reduce the dodge of Fathom mobs
Damages of lost exp
Won't touch to AO1

It's just to make the game easier, not to make it too easy. We need challenge sometimes

Maybe also add a social option "xp orbs" and when u got it activated it just makes as in rift maps, so u don't get any loot but xp orbs

My two cents