Player's Handbook, Monster Manual, Monsters of Faerûn, Manual of the Planes, Lords of Madness.
Reskinned high elves, grey elves, wood elves, half-elves, avariel, goliaths, and goblins for PCs.
(Ogers and ghouls as options to be introduced later.)
Bards, monks, paladins, and sorcerers are out.
Psions and wilders are in. (Only egoist, seer, and telepath psions.)
Hard level cap at 12th. 11th and 12th level NPCs play the role of epic level characters in the setting, with 6th level spells being these very rare miraculous powers.
Chitines, gnolls, grimlocks, quaggoths, skum as main wild humanoids.
Plane of Faerie as main otherworld, home of fey'ri, yuan-ti, and elementals.
Plane of Shadows takes on all the functions of the Astral Plane and Ethereal Plane.
It's the borderworld that conncets to the home plane of aboleths, doppelgangers, kraken, mind flayers, and tsochari.
No other outer planes or elemental planes; no outsider type creatures. (A few become fey instead.)
Psionics gets reflavored to be the Arcane abilities from Bloodborne.