Some info can be seen at the Stormreaver Monument. Item names, icons, but not stats.
Basically the Fall items appear to be renamed versions of the classic Reaver loot, presumably with new effects.
Example: 'Gauntlets of Immortality' have the same icon as the Gauntlets of Eternity. They can be upgraded twice. Tier 1 upgrade adds a yellow slot (5 Commendations of Heroism, and 18 restored relics, six of each type - restored relics are a bit more common than the Faerun commendations). Then there's a second upgrade to add an additional colorless slot for 7 Commendations of Heroism and 27 total restored relics (9/9/9).
Other items:
Pendant of the Stormreaver
Skybreaker (Cloudburst icon)
Dreampiercer
Idol of Fortune (Head of Good Fortune)
Halcyon Boots
Madstone Aegis
Ring of Deceit
Stormreaver's Tablecloth (yes I hope this is a placeholder name)
Brasingstar (Tenderizer, but seems to be fire-oriented as its upgrade adds Conflagration)
Rebellion (Treason)
Ventillated Armbands
Interesting effects:
Halcyon Boots gain a green slot as the second upgrade
Ventillated Armbands grant immunity to air elemental knockdown
Idol of Fortune upgrades to Good Luck +3