Some suggestions

Ok, I'm going to list several suggestions/complaints here about the game, but I don't want to give the impression that I dislike the game.

It's an amazing game, and I love it.

That said, here we go:

JUMPING
No jumping? WTF?
Many times I've been walking forward and come to a little tiny hill with about a 2 foot drop, and I can't just jump off of it. Instead, I have to go (in many cases) way around the hill to find a slope where I can descend. I assume this is for reasons of getting "stuck" in the polys or something, but it makes it seem like the game is railroading you down a very tight path (which is actually usually the case). The game doesn't seem as "free" in terms of movement as other similar games I've played.

MAIL / TRADING SYSTEM (or lack thereof)
The game needs auction houses and a postal system. Maybe I've just been spoiled by World of Warcraft, but these two things make this type of game much more enjoyable.

WHISPER NOTIFICATION
There really needs to be an option for a (loud) audible "ding" when you receive a personal message (whisper). It's so easy to miss whispers unless you happen to be looking at the chat window at the right moment. I know some players who have moved the chat window nearly to the center of the screen to prevent missing a whisper while questing in the instanced areas.

I think the game should have a small jump action, so you can hop off little cliffs, or over small obstacles.

But don't go WoW style.. thats just nuts. =/ I like how GW keeps you in track and makes you use strategy with what you have.