What does Leaders of the Fang reward?

Leaders of the Fang gives a choice of Crescent Staff, Wingblade, 4,300 experience.

Where does Leaders of the Fang start?

It was picked up in Thunder Bluff.

Its level has not been recorded yet; it shows once a player accepts it with the addon running.

No. The quest exists in Classic Era as well.

World of Warcraft: Forever · quest

A quest in World of Warcraft: Forever in Thunder Bluff and turned in to Nara Wildmane. Recorded by 3 players running the addon.

Level, giver and objectives show once a player with the addon accepts the quest.

Item	Given	Item level	Vendor sell
Crescent Staff	as a choice	24	36s 80c
Wingblade	as a choice	24	29s 33c

What does Leaders of the Fang reward?: Leaders of the Fang gives a choice of Crescent Staff, Wingblade, 4,300 experience.
Where does Leaders of the Fang start?: It was picked up in Thunder Bluff.
What level is Leaders of the Fang?: Its level has not been recorded yet; it shows once a player accepts it with the addon running.
Is Leaders of the Fang new in WoW Forever?: No. The quest exists in Classic Era as well.

Source: what players running the addon saw in the quest windows; the quest text itself stays in the game. Every quest seen · Thunder Bluff