Amidst the endless sea of notes, it's easy to miss these two sentences that will forever change the role of professions in WoW:
For many years, theorycrafters and min/max'ers have baked profession bonuses into their calculations. The crit from skinning, the Synapse Springs of engineers, the eye gems of jewelcrafters, the warmer wrists of leatherworkers, etc. -- all of them have affected which professions are "best" for certain specs.
In recent expansions we've seen Blizzard try to make the bonuses more or less even across specs, with mixed success. Now, all of these bonuses are headed to the chopping block in patch 6.0, at least in their current incarnations.
Maxed-out professions will no longer be essential for high-end PvE or PvP activities. We will no longer need to weigh our personal preference against possible combat advantages. In fact, players will be able to skip leveling professions at all, if they choose, without penalty to their character's performance. This strikes me as a good change.
Will professions only provide an economic advantage from 6.0 on? Or will they give us other bonuses, such as extra lesser charms, bonus pet battle XP, or faster garrison construction? Will Blizzard tweak the existing combat-related recipes to provide different bonuses? Or will the developers remove them entirely? Many questions remain to be answered as the alpha progresses!