As much as I think that GW2 needs a box expansion... I feel cheated. It's an expansion. And they said they're not thinking about expansions not so long ago. What's more, it's a typical expansion. So why was it called a "new way to expand the MMO"? It really shows how unreliable and incoheret ArenaNet is nowadays. That really doesn't bode well.
I'm not excited. They still focus on adding new things instead of fixing many annoying features currently existing in the game. It feel like they're going to give up on all the things they've added and they're adding and move on despite of the loud crowd demanding updates to existing enjoyable features.
Guild Halls... no, Guild Hall. Because it seems (from their site) that there will be only one, in Maguuma... Well, it should've been in game since launch, really. With more than one option tho...
Kind of GvG - If they're going to abandon it like Edge of the Mist then I'm not even bothered. Also, is it me or is the fragment used in trailer featuring this new mode nearly the same PvP as a video leaked during early tests of the game (that generated a huge hype because there was a necromancer with scythe [staff]). Does it mean that they had it ready for long time (probably like most of the HoT and Living Story)?
WvW new borderland - Well, I hope that splitting will be awarded more than zerging on this map. But that "objectives more important than ever" seem to be inspired on Edge of the Mist objectives and zerging is still the way to go there... a failed attempt.
New profession - melee ritualist, lovely. However I dislike the name. It suggests that everybody using this profession had died (I know that this could mean that they have returned from the Mist but anybody can return from the Mist via Asuran Gates xD If they had a power to move between normal world and Underworld, that would be a different story.). But they're "just" using spirits of dead important figures (like ritualists used ashes in GW1) and had not died themselves, right? Maybe Rytlock died, I don't know, but clearly not all of them had?
I like that their Spirits tie to the story. Glint, King Jalis (Ogden was quite important recently, right? Maybe we'll see more Dwarves soon) and... MALLYX (Margonite overlord from GW1). I really think that those flying creatures in the trailer look more like Margonites than Mursaats.
Specializations sound good however we don't know much about them, yet. I dislike the fact that they're for level 80s only and can be found in nw Maguuma zone only. I know that there must be some reason for people to pay for expansion but that conflicts with the early direction of full freedom... They could use it to add something new to currently existing zones and show how they've changed after Zhaitan's defeat (I really feel like Zhaitan was a joke. He's not mentioned more than ~twice? in LS)
Hopefully it won't be as shallow as these new single traits added some time ago...
I hope that all professions will get all weapons. I'm not really sold on shields for mesmers.
Mastery system...
lore masteries - love!
hang gliding - gosh, stop. People hate this. Dry Top has been criticized because of all that annoying mechanics placed right at the very start and they're adding a new way to make people angry?
I don't like the fact that you'll have to learn them to be competitive in new the new zone PvE. Forcing people to make Ascended gear via the Agony in Fractals was a mstake. It feels like ArenaNet can't learn their lessons.
If crafting masteries require max crafting and the crafting isn't going to be fixed then I'll pass. Most of the current legendaries don't even appeal to me.
Again, I don't like that it requires level 80. It feels so forced just to please "no endgame" whiners. THAT is not going to please them anyway.
New old? creatures (
http://wiki.guildwars.com/wiki/Ceratadon ?) - well, it's a mandatory but I'll take all the references to GW1.
I like that they're using ideas from scrapped Utopia.
It seems that this "new" civilization (does it mean that they're neither Margonites nor Mursaats?) will solve the mystery of GW1' version of Dry Top's houses.
No level cap increase and no new gear level - great thing for me. BUT, they've said this about gear earlier and we still got Ascended...
To sum it up, I think that most of these new features will either fail completely and will be abandoned or will be too shallow to bring me back.