[Hey folks, just yer auld Dwarf trespassing here - we need an official thread for Eternal Item quests anyway, so I decided we may as well grab this one! Thank you for your feedback - please keep it on point and with lots of useful detail.
Here is a list of the current steps for the eternal weapons. (as of 24.02.2017 or 02/24/2017)
Every weapon has a use-effect once it becomes eternal (after 3rd upgrade), which has a 30min duration (persists through death) and 60min cooldown.
Clerics and Warriors do get a onehand and shield once the 2h weapon becomes eternal. Rogues get their second onehand once their first becomes eternal.
Warrior: +4% raid-wide mitigation
Cleric: +4% raid-wide healing received
Rogue: +4% raid-wide damage done
Mage: +4% raid-wide health
Primalist: +2% raid-wide damage done, healing done and health each.
Only two out of sixteen steps are skippable by investing money , that's quite nice. The minion one would be hard to adjust, but I would like to see the cosmic cores one to be changed to "Salvage Planar Fragments x/n".
Edit: Yes, it is nitpicking, I know.