Omen of Sorrow (PS4)「Limited Time Demo Ver. 2」

Might seem strange a publisher would make 'special' demos but it's a thing and gives people a chance to try out a portion of the game with different content.

The demo was released just yesterday (October 20) but it doesn't seem like it states anywhere when this limited time offer expires, so can't specify an expiry date as obvious.

Taken from Gematsu:

The second demo features Zafkiel, Gabriel, and Adam. Just like the first demo, the second demo is playable in either single-player or local multiplayer modes.

AOne Games comments:

With this demo, players will have in their hands a version of the game where we have polished many subtle details since the last public demo and event releases