Blacklist/Friendlist.. the blacklist being account wide i can see and is a good idea for many reasons.. they’ve stated friendlist expansion is something they are working on though it takes time.
Aether currents: please dont remove aether currents as stated above just plan/place better
UI changes to be uploaded easily. Yes please and make it easier to port UI from pc to ps4.
In game timer cool idea never thought of it.
Free markets. Also probable down the line though i can hear some crafters likely cursing your name for suggesting it xD
UI color changes eh not freely but they did say they are working on more themes so ill take it.
Select/delete all for mail god yes please. This would be incredible.
Portable summoning bell: cant and wont happen they wont even allow us retainer bells in our yards.
In game browser - see above.
Mogstation in game: i see where you are coming from but that feels a little pushy on the cash shop so probably not but cool to think about
Log out counter - eh.. why tho?
Chat stuff are cool ideas specially bubbles
Inventory.. more space sure.. customizable tab names.. less important but armory chest space.. yes
Ill forego repair all if i can request repair from fellow adventurers in instanced content!!
Mounted combat/ pilotable subs/airships really cool ideas not sure how viable but thats fun to think about
Optional name day celebratory quest would be kinda cool..
Additional idea: indoor training dummy for housing. For no other reason then why not?