If you had the power to add one feature no questions asked, what would it be?

[Hysterior]

That items tell you were they can be exchanged / which NPC is involved.
Sometimes you get token and you need to go to RadzatHan, sometimes Eulmore, Idylshire, Mor Dhona, Kugane... it's messy
Wish there was more clarity there or that they revamped token trading as a whole.

in the same line, I just wish they revamped tokens / upgrading gear with tokens as a whole... so messy...
Get two coins, change the 2 coins for a token with a NPC. Go to another NPC to upgrade but you can't have that gear equipped so switch job before your talk to the NPC, then select the gear and the token....
Why so cumbersome?

[Limecat]

Being able to see the current high roll during lotting, so you'll know if you can jet or should stay when you get someone that falls asleep one second after clearing the final boss of a raid.

[PaulH]

Bring back to protect, yes it might be pointless, blah blah but my feature :P

But protect please

[GTK0HLK]

Region wide PVP<Ranked maybe. you'll still have your DC rankings, but those nearer the top are closer than those in their own worlds.>

Don't really expect such a thing to happen unless SE really, really feels that Dynamis needs an injection.

And I'm sure someone has mentioned it before, but a much more efficient/enhanced/improved UI/Character Settings/System/and even skill<placement> transfer between characters. and if able, account.
Such a hassle and then I see that the custome sorting or etc doesn't work like I want it too on my alts. or the fact that keeping items out of my Armory Chest is not transfered either.[course though, on an alt it's more easier to change gear to new one if it auto drops into the chest, but Digress]

[ZephyrMenodora]

NPC Romance & Marriage system.

[Brynne]

NPC Romance & Marriage system.

This, basically a bonding system where you could do little quests for NPCs and get to know them better.

[Avoidy]

Alliance Raids (Unreal)

[Rithy255]

Reworked Selectable role actions, have a few default ones but some with options heres a examples:
Tanking CD: Rampart, Mitigation: 20% CD: 90 Duration: 20 / Awareness, 10% CD: 60, Duration: 25 / Guardian, 35%, CD: 150, Duration 15 (Choose One)

I'd want a bit more customisation with role actions, even if one is more useful then the other in general just adds a little bit of customisation to each Job separating even having two of the same classes, unrealistic but something I'd like.

[Seraphor]

Option to expand Apartments to the same sizes as Small and Medium houses, and the ability to add on an optional Outdoor Terrace area that leads off the back like FC rooms.

[lyralulu]

A complete character creation update