That was GW2's problem. Every time I played a class to level 20-30 I felt like I wanted to reroll because I've seen everything and I had another 60-50 levels to go. The issue was the traits were quite powerful and changed how you played your class (for the most part) however there was a very soft curve to them that you could not notice as you leveled. But if you compared a level 20 to a level 60 then to 80 there was a huge difference.
GW2 had too many levels to start the game with and things were very saturated.
I also appreciate what GW2 tried to do with getting rid of the trinity. It had to be tried, and people learned that they really do like have roles to play. Fortunately, that style of play fits what GW2 likes to do which is a lot of solo or open zerg content.
GW2 is interesting, yet lacking in some aspects, for example several of the non-weapon based skills were junk (or too few were good enough), lack of damage for some classes compared to others, survivability for some, condition vs power, etc. the list would get long fast enough.
I think that the game is very well done, has good animations and responsive controls, plus I dig the combat style, few hotkeys, reaction time required to handle various situations, bit of variety through the different weapons and so on and so forth.
There is a lot of difference from level 20 to 50 and again from 50 to 80, I don't find it bland at all in that regard, what I find horribly done is the loot system: I can spend 15 minutes to solo a champion in an epic battle and get rewarded with a sack of nothing or a shitty blue item. I have about 400 levels worth of characters and never ever seen an exotic drop randomly for me (hate magic find gear too while we're at it).
I think the gw2 world is quite beatiful, full of hidden places (unless you like to read the spoilers somewhere), the hearts system is non-intrusive enough and the DE are okay (except their frequency, absurdly stupid at times). Orr also promoted grouping even for general exploring, 2 or 3 people were ideal for most areas around there and large groups for temple events. In the end I think it's a decent game, nothing terrible, yet nothing incredibly good. It can get better, they are changing a few things, bit slowly to be honest, but they are getting there.
A new EQ game is certainly interesting, but I'm not expecting anything special anymore: if the game is fun I'll play it, for how long will depend on many factors, too many to list them all here. I have to give a prop to SoE for having made some of the best dungeons in the MMO history, from EQ to EQ2 I enjoyed a lot of them, both instanced and not instanced, some of the EQ2 ones were just that awesome (even incomplete).
All I ask is a extremely cool bard and necromancer classes, then I'll be happy for a long while.