New Alternate Paths:
-> Craft Mithril Warhammers = When you have Goblin Brutes, craft these for them. That way mithril is useful to both elves and goblin paths.
-> Craft Potion of Flight = Using the Fairy Wings to unlock additional gameplay paths that would require you have some way to fly, to reach them.
-> Divine Rites = If you turn over the Necromicon, you can perform Divine Rites on all the corpses you've accumulated, to say train Holy Magic, a new form of spellcasting.