Not only is draw distance a problem in GW2 but also there is a cap. Which is why there are ques.
That's a problem with your own pc not with the servers, and the cap is high, im quite sure that just the zerg of my server has atleast 200 people in it with other wandering around.
Same huge lag happens in EVE.
There is no lag in EvE, big engagments get announced to CCP before they happen and they reinforce the server node of the solar system it's happening in, and if the engagment is very big the in-game time gets slowed down.
Also the game is about 18-20 months out.
Every MMO as server problems on release and I fear this one will have it the worst, the problem is the bad rep of the devs, they do a good impression on me too in how they are handing out things and news, but their history of game deveployment is mostly composed of badl games and shovelware, which even they admited in an interview, on top of that they are going to use this pikko thing, which I did a very quick research and no other MMO seem to be using it, so it's safe to assume it's either a new and un-tested thing or simply bad.
In all of this, the Devs are making really alot of promises, I don't know about their budget but surely they got more than just inspiration from space marine and Dark Millennium, and they want to do all of this in less than 2 years, now I really hope for the game to be fun, but still I don't see something concrete Im going to be highly doubtful that they can pull this off with everything they promised.