So, just as a reference here are the keys we're currently seeing as ones that will not be converted to gold or removed upon release of the patch -- if you have them they'd be put back into your normal inventory. This isn't necessarily a final list, and it's possible we could cut the list down even further before 4.2 releases.Schlüssel des 'Grimmigen Säufers'
(BRD)Schlüssel des Dunkelbewahrers
(Nagrand)Schlüssel zur Kolkarbeute
(Barrens quest)Gefängnisschlüssel des Astraleums
(Netherstorm – Blade’s Edge)Schlüssel des Kapitäns
Any Blacksmith keys (e.g. Titanium Skeleton Key)