Having maxed out all of my tradeskills I've noticed a bit of disparity here.
LW/Tailoring/BS - they've all got two 359 items
Engineering - used to have three - hat, bow and gun - ranged weapons got nerfed down to 346 so now just the hat
Alchy - got the stones, but you can only use one at a time, other stuff like cauldrons and vial of sands are disputable - flask of enhancement is borderline 359 I guess
Inscription - darkmoon cards, unfortunately the cost is through the roof - even pretending that you could get all eight cards with zero repeats you're talking, what, about 5k worth of mats per deck
Chanting - I guess all of the maelstrom crystal chants count as 359 since you're using mats that you can't get without DEing 359 grade drops
JC - Nothing really - yeah, JC gets it's three uber gems but that's part of it's base edge - even the "quest" trinket recipes that drop are only 346
I'm kind of mixed emotion as to whether or not I want to see more - my druid already has both of his 359 leather and while I'd love to be able to make a 359 item for every slot, if I could then he'd have minimal incentive to do anything other then raiding - I'm guessing that BS would have the same issue.
Even with more stuff my tailor would be completely decked out any time soon for the simple fact of the one week CD on the dreamcloth, so not much of a threat for my cloth toons.
Not sure how they could boost alchemy - maybe give them flasks of enhancement that can mimic each of the raid flasks or a never ending cauldron that gives infinite summoned heal/mana pots (limit them one per person like lock stones put it on a one or two hour CD).
Engineers definitely need some love (as always) - eventually giving them an entire set of engineered armor would be awesome but I'd be willing to settle with letting them install gear slots in other items.
They really should have given inscriptionist some higher level relics to balance out the fact that DM cards cost a small fortune to create a single set.
Chanters could be given some additional self-only chants (like the rings) that would be superior to the chants that they could cast for someone else in those slots (that or give us some self-only head/shoulder chants that are on par or better then the rep ones).
JC got hit the worse - no 359 jewelery to use/sell - at least give JCs some 359 trinkets or personal ring/neck to make.