What does The Family Crypt reward?

The Family Crypt gives Bonecracker, Darkwood Staff outright.

Where does The Family Crypt start?

It was picked up in Tirisfal Glades.

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 Tirisfal Glades. Recorded by 1 player running the addon.

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

Item	Given	Item level	Vendor sell
Bonecracker	outright	13	6s 40c
Darkwood Staff	outright	13	5s 92c

What does The Family Crypt reward?: The Family Crypt gives Bonecracker, Darkwood Staff outright.
Where does The Family Crypt start?: It was picked up in Tirisfal Glades.
What level is The Family Crypt?: Its level has not been recorded yet; it shows once a player accepts it with the addon running.
Is The Family Crypt 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 · Tirisfal Glades