Shaman talent · row 3 of Elemental, from level 20 (15 with Talented 5/5) · Physical

Elemental Alacrity

Reduces the cast time of your Lightning Bolt, Chain Lightning, and Lava Burst spells by 0.17/0.33/0.5 sec.

Game files · build 1.60.1.70245Read from the WoW Forever beta client, build 1.60.1.70245.

Compared with Classic

Classic tooltip

Reduces the cast time of your Lightning Bolt and Chain Lightning spells by 0.2 sec.

What Blizzard said about Elemental Alacrity, each line checked against the files.

Matches the files
Swapped the positions of the Elemental Fury (Row 3) and Elemental Alacrity (Row 6) talents.
Developers' note: Critical Strike damage increases early on in trees are exciting for other specializations, but its not as exciting for the core specialization while leveling, since they don't have enough critical strike chance to really appreciate it. So we're moving one of the better talents for Elemental Shaman functionality, earlier in the tree, to allow them to feel like they're hitting important progression moments (something Elemental has lacked in the early levels). We understand that this affects Enhancement Shaman's critical strike damage with spells, but we will use this room created to add more to Enhancement Shaman in the future.
The files Build 70009 swapped the talent node positions: Elemental Alacrity (16578) moved from row 6 to row 3 and Elemental Fury (16089) from row 3 to row 6.
Elemental Alacrity Elemental Fury Development Notes, September 24

69876 Sep 16First beta build we archived. No changes in the client files since.