What does The Symbol of Life reward?

The Symbol of Life gives Symbol of Life outright.

What level is The Symbol of Life?

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

Yes. Its quest id is not in Classic Era, so it is part of what Forever adds.

World of Warcraft: Forever · quest · new since Classic Era

A quest in World of Warcraft: Forever in Ironforge and turned in to Tiza Battleforge. Recorded by 2 players running the addon.

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

Item	Given	Item level	Vendor sell
Symbol of Life	outright	12

What does The Symbol of Life reward?: The Symbol of Life gives Symbol of Life outright.
Where does The Symbol of Life start?: It was picked up in Ironforge.
What level is The Symbol of Life?: Its level has not been recorded yet; it shows once a player accepts it with the addon running.
Is The Symbol of Life new in WoW Forever?: Yes. Its quest id is not in Classic Era, so it is part of what Forever adds.

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