I want to bump this thread with the following update:
Alani is obviously still farmable, however the Vale of Eternal Blossoms has changed, which means the tricksters are gone.
The best spot to grind is still 'Ruins Rise', which have Mogu NPCs now, which are stronger, but have a slightly higher drops rate of Sky Shards.
Using this profile with Honorbuddy is probably the best: Guest123's Skyshard/Mote of Harmony/Black Prince Rep/Guo-Lai Cache Keys
Happy hunting!
P.S. Everyone is either on the Isle of Thunder or on The Timeless Isle, so you should be able to grind in peace!! (And sorry for posting on your thread Watcher, but I felt starting a new thread for this information being kind of unnecessairy)