What does An Unfortunate End reward?

No reward has been recorded for An Unfortunate End yet.

Where does An Unfortunate End start?

The giver has not been recorded yet.

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 and turned in to Night Watch Guard. Recorded by 1 player running the addon.

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

No reward item has been recorded for this quest. The offer window fills this in when a player with the addon opens it.

What does An Unfortunate End reward?: No reward has been recorded for An Unfortunate End yet.
Where does An Unfortunate End start?: The giver has not been recorded yet.
What level is An Unfortunate End?: Its level has not been recorded yet; it shows once a player accepts it with the addon running.
Is An Unfortunate End 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