Petrichor

Great guide can be found here. http://wow.allakhazam.com/wiki/WOW_Guide_Weaponsmithing_vs._Armorsmithing

While true - I have a guild member who was able to change from dragonscale to tribal leatherworking already this patch. Paddy (Anathema) in case you were curious. That, plus the fact that the NPC conversation tags and the unlearn action item are already present in this patch would also suggest this is still a bug. It's my understanding that there was a change made in 2.0.3 as you've stated, but it was a change to the way in which the base action functioned.

If you have sources to back that up would be great. Until then I have created a bug tracker ticket and confirmed with a GM that it is infact a bug in the core. Please upvote it so we can get it fixed ASAP. https://elysium-project.org/bugtracker/issue/1768

I'm having the same issue switching from Swordsmithing to Axesmithing in Winterspring. Talking to Serl Scourgebane and selecting I wish to unlearn swordsmithing yields "this action cannot be completed right now". Another user has also reported a similar issue trying to switch from weapon to armorsmith https://forum.elysium-project.org/topic/34465-changing-blacksmithing-specialization/ TheCenturion - Anathema

I'm having the same issue switching from Swordsmithing to Axesmithing in Winterspring. Talking to Serl Scourgebane and selecting I wish to unlearn swordsmithing yields "this action cannot be completed right now". I have an open ticket with the GM and will post back here with results. TheCenturion - Anathema

I came across this toon in Un'goro earlier today and the toon would kill a creep, and run in small squares and back and forths moving diagonally across the map until it came in range of another mob which it then killed.