2. There is really not a lot of class homogenization, content has just gotten too easy. It is not because Minstrels are suddenly viable tanks that it is possible to do a level 85 Sambrog challenge with nothing but hunters and a mini. If more instances were like Lost Temple T2 this would not be an issue. This is a result of pandering to casual players and a general reduction of the slope of the skill curve.
3. This I agree with, I actually like it when instead of getting another skill you just get upgraded versions of old skills (such as is the case with Rohan).
4. There will always be bland or useless skills. Champions get a slow, in PvE it is utterly useless and I doubt any F2P players have it slotted on their champs, however for moors it is a main stay for champions. Champions get a bow skill, it does very little damage, has a longish CD, however there are some situations when using ranged attacks are actually useful such as Fornost water. The only way we can have good skills, is if we have bad skills to compare them to.
5. This is a problem with the current trait system not giving significant enough bonuses and modifying skills enough. Current traits are more often than not like a cherry, sure it makes a sundae more appealing to look at it and it may enhance the flavour a bit, but a sundae without a cherry on top is still pretty delicious. Traiting should be the difference between a fudge sundae and smoked salmon, sure they are both delicious but definitely not interchangeable
6. How does new trait trees do anything to make this better? they still have to grind traits just the same. They get a few fewer skills but many more traits so it doesn't reduce complexity. In fact most classes I have noticed tend to get their primary role skills early, such as dps for champions and hunters, healing for minis, tanking for guardians etc. So there is more class identity at level 20 than there is at level 60.
7. How is that going to be easier? you have to come up with at least 3 versions of each skill plus (if the mounted combat trees are any indicator) about 45-50 different traits. Class balancing is not only already really bad, it is something that is never addressed and outside the almost guaranteed imbalances introduced by this massive overhaul which will not be addressed any time early after launch this promises to be another 6 months+ of badly tuned classes.
The game has changed a lot, not all of those changes have been for the better. It is too early to judge if this change is just change for the sake of keeping some designers busy and employed or if it will add any value to the game. I do have to say I am cautiously pessimistic based on other major changes to the game over the last 2 years as to the success of these proposed changes. Ultimately I would rather see the tank classes get reworked (warden get nerfed down to the level of the rest of us mere mortals and guardian get reworked so their threat generation is relevant again).