What is your favourite game that was announced or started developement, but was never released and seem to have dissapeared from the planet? When was the last time you heard about it?

Western English release of Phantasy Star Online 2, Agent, Wardevil and Shenmue 3. Close to being on the list is The Last Guardian

Certainly TLG cause the game looked just so damn awesome and I am just so curious to play it and explore the world

As of now, it's Shin Megami Tensei X Fire Emblem. But that'll change when or if they show it off some more.

TLG.

Because it looked so sexy, and it was made by the makers of SoTC and Ico. If TLG doesn't release on the PS4, I will personally go to Sony's HQ, knock on their door, then break down crying.

Shin Megami Tensei X Fire Emblem and Half-Life 2: Episode 3.

I was pretty excited for Sadness on Wii.

I thought the OP was referring to my favourite music genre...

Does Metroid Dread count? Last time we heard anything about that was a log in Corruption

Shin Megami Tensei x Fire Emblem.

And I don't even like SRPGs, nor have I ever been able to get into any games in either of those franchises. I STILL want that game anyway.