when someone took a fief, he then will be able as lord of that fief to increase loom levels from -2 to upto +3. Anyone visting that fief, will be able to buy those items then there.
A new mechanic is said to be introduced, which will alow you by having f.e. a +2 item, to sacrifice/merge several(2-3?) lower loom level items to create another +2 item.
same with creating +1,+3, +0 items, no idear though if you could use -2 gear to craft +3 gear and if you need a different amount then to invest.