It would be nice if there was an option to sort crafting recipes by body slot of the crafted item. To show only crafting recipes for helms, for example, or only recipes that produce rings (etc.) On a semi-related note it would also be cool if we could select an item and then show only recipes that use that item as an input/reagent (although I realize that this second request would unfortunately probably be harder to implement)
In line with this, it would be nice if items would list if they were used in smithing, tinkering, and/or alchemical recipes to help inventory bloat. Better still would be if we could filter autoloot for these aspects.
