It would be handy to display the loot table for Piglin bartering. It works pretty much exactly like any other loot table, so it shouldn't be too difficult to implement.

(Piglin "drops" are found in the minecraft:gameplay/piglin_bartering loot table)

I would add that to the pack as well. I am currently working on modpack with Create mod and I added some required resources there. It would be nice to have some way to communicate that information to the player.

Is someone working on this? Because at this point I'm considering trying to implement it myself and then do a PR, but I'm not familiar with JEI or the codebase of JER, so it would be really nice if someone else was able to implement this.
Do you have a status on this issue, @way2muchnoise? Or could you say how high of a priority this issue is?
I would love to get this implemented, whether I have to do it myself or if someone else is able to!

For the 3 year anniversary of this feature request, may I ask if there are any plans to add this? :) @way2muchnoise