Outlined Below: TLDR I do not do those if you can not be bothered do not read.
-Origional design of GW2
-Design Traps that GW2 will have hard time recovering from
-State of the game
-What can be done
-I will refrain from talking about world bosses they will always be loot piniata’s or timed challenges in which a few newbies can mess the fight for everyone, this is what Anet chose and it will not change.
Guild Wars has was originally touted as game where in which your abilities as a player leads to success. Dodge mechanic added to the game to lead to more active combat and give all classes a way to negate damage. The basic idea is sound.
State of the Game:
Somewhere along development they fell into some design traps that I think they just can no longer escape. Dodge mechanic was smart but they created a trap and fell into it, dodging enables all players to be immune to all relevant monster abilities which is nice but to make dodge skills relevant all bosses have 1 shot 2 shot skills with a low attack frequency enough for endurance to keep up. The over use of this mechanic has hindered development and has lead to the stale game play we see today. Memorize pattern of bosses, learn to melee strafe and never get hit. Part of the reason why you see so many dungeons being able to be solo is due to this design for better or for worse that is how the game is.
Berserker meta and why it will never change:
Due to game design of slow hard hitting enemies demonstrated above. Defense stats never matter almost never matter. Also they fell into another design trap that GW2 may never recover from. Bosses have 500k hp because the only way for a experienced player to die is well to make an error, high hp on bosses ensures that players need more time to kill a boss therefore more time to make an error. Due to the combination of defense stats not helping much damage stats become the most important, the faster you kill the less chance you make an error. This is why berserker meta will always be the meta. Using their game design strategies they made only possibly only 3 item stat sets relevant for 90% of the game. The trade off of higher defense for more stable runs is non existent. obviously the best players will always shoot for least defense required to finish a run smoothly but in GW2 trade off is not there.
What needs to be done to make the game exciting and fresh?
-Monsters need less HP, to compensate. monsters need to use more special skills and combination attacks.
-Enemies need increased attack frequency if they want to make defense stats relevant.
-AI needs to be smarter which is not going to happen, AI in this game worse than GW1. AI should act smarter and move around instead of standing or rushing players making positioning matter. Example ranged enemies without line of sight will charge around a corner into melee range instead of flanking around out of melee range. Monster movement would also serve to stop the corner stacking strategy which devoid of smart game play. Almost all bosses boil down to stand here melee dodge this and that.
Sadly Anet seems amendment in its direction and never admits its mistakes I do not foresee, GW2 becoming fun to play ever again. Once GW2 loses its luster you to will find it very hard to get into the game. I only play when there is new content after that I quit. If LS stays poorly written and designed people like me will not be motivated to log back in.