I have been looking at the developer interviews and two things concerning professions stand out.
From the interview summary:
"There are a large number of players that enjoy crafting or aren't able to do raids, which is why the profession recipes like engineering goggles are still relevant even past the first content patch. The gear is still fun to make and useful for those players. It is unlikely that we will see crafted gear that remains upgraded and relevant throughout the entire expansion."
Sure, okay, I like the idea that I can craft my epics without having to raid. I also like that it's being extended into the later patches as well. With Firelands, I hated that, even if you got your hands on a LW recipe, it was still very hard to get the mats to even craft the gear. It was tied into the raid way too much. (I liked the chaos orbs though.)
Then, the next bullet point:
"Blood Spirit is found from Disenchanting raid weapons and then used for crafting epic gear. It is there to offer an alternative to just Disenchanting some loot and getting materials for an enchant."
Now this is completely the opposite of what the above point makes, isn't it? Probably, all the craftable epics will require this, so I'll be completely dependent of raiding again. With 4.0, I remember that you didn't need anything from any raid to craft T11 epics. I really liked this a lot.
However, maybe I'm just seeing something wrong here. Does anybody have some more info on this?