What does The Love Potion reward?

The Love Potion gives a choice of Manacle Cuffs, Nagmara's Whipping Belt, Boots of Requite, Private Rocknot's Spare Bracers, 80s, 11,227 experience.

Where does The Love Potion start?

It was picked up in Blackrock Depths.

The quest log lists it at level 54.

No. The quest exists in Classic Era as well.

World of Warcraft: Forever · quest · level 54

A level 54 quest in World of Warcraft: Forever in Blackrock Depths. Recorded by 2 players running the addon.

Giver shows once a player with the addon opens the quest.

Item	Given	Item level	Vendor sell
Manacle Cuffs	as a choice	55	79s 39c
Nagmara's Whipping Belt	as a choice	55	98s 19c
Boots of Requite	as a choice	55	1g 79s 25c
Private Rocknot's Spare Bracers	as a choice	55	1g 26s 74c

What does The Love Potion reward?: The Love Potion gives a choice of Manacle Cuffs, Nagmara's Whipping Belt, Boots of Requite, Private Rocknot's Spare Bracers, 80s, 11,227 experience.
Where does The Love Potion start?: It was picked up in Blackrock Depths.
What level is The Love Potion?: The quest log lists it at level 54.
Is The Love Potion new in WoW Forever?: No. The quest exists in Classic Era as well.

What sells at this level, and what to keep from these rewards, is in the level 50 to 60 gold guide.

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