Old world professions

WoW's professions and secondary skills have seen many facelifts throughout the history of the game. Except some haven't.
Blacksmithing, long thought to be one of the most annoying professions to level, is now...relatively easy. The grindy bits requiring mithril and other nonsense now are easy thanks to the increase in mithril nodes. The new items that give multiple skill-ups have been a boon to many professions, such as engineering, which would need exponentially more ore towards the end if some items didn't give 5 or 3 skill-ups per craft.
But a lot of the old-world junk remains.
Enchanting still takes a beast of a long time simply because of what you need and where it comes from, and Leatherworking is an absolute monster, requiring thousands of hides for items that in today's game are useless or in the best case scenario last a half hour. Engineering still carries some old nonsense in it, practice locks are one; since rogues no longer have to worry about leveling up lock-picking, those practice locks have next to no value. They even sell for next to nothing; 12 copper per vendor. Woo.

Blizzard needs to try to fix some of these old professions. Cut out some of the abysmally long cast times. Cut out the parts where you need 200 hides or 200 dust of a certain kind. Give us a little bit less grind please, and then people will start to like professions more.
Really, the best thing they could do would be to add multiple skill-up recipes for lower level crafts, to justify spending 10 silver bars for that breastplate. Give that thing 5 skill-ups and people will be lining up like crazy to make it.
it might even be fun to put in crafted gear that makes Bind on Account gear-heirlooms. Make THAT part grindy as hell, requiring items from every level that's a multiple of 5 or something, and mash 'em all up to make something for a low level character to wear. Make professions more of a part of life for characters, instead of something you just have and occasionally use once a month for a new hat.