The most recent diary covered crafting and how it will be improved and expanded in SoM. The entry begins on a promising note: "Being an ally has its advantages! New recipes for weapons, armor, jewellery, and other items can be found amongst the elves of Emyn Lum in Mirkwood," and goes on to detail the many changes.
The overall crafting experience was given an overhaul, and the diary included a handy tour of the new crafting panel to help you find your way around. Legendary and class item recipes have been added, as well as recipes for a new "crafted relic", an item designed to fit in a fourth relic slot for equipment, and all crafting professions will see changes in recipes and experience. Crafting guilds will find that they can now give unused guild reputation items to traders in exchange for larger reputation items.
It looks like crafting is going to be much more interesting to both new and old players -- you can read all the details here.
