Metroid- i'll only go back if they reboot it. I dont want to play a franchise where Other M is canon
Resident Evil- if 7 is where the series is going then i can no longer follow it. I cant do first person and the generic horror themes dont interest me.
Having played RE7 with a friend(to completion).
RE7 plays more like a Resident Evil game than 4, 5, and 6. It is anything but a "generic horror game". It simultaneously goes back to its roots while providing something new to the entire genre. Even though the game is first person, it plays exactly like REmake on the GameCube actually. Slow paced combat that causes stress. It doesn't rely entirely on jump scares, like other horror games. It also tells a very interesting and unique story with a ton of personality.
For me, I have given up on:
Fallout: they have strayed far too much away from its RPG roots with 4.
Star Fox: it seems they can do nothing right with this series.... Just put it out of its misery unless they want to take the time to have good ideas and design.
NSMB: just die.
Halo: Lost interest after 3
All of Rare: I could not care less about Rare now. Banjo, Conker, and all of the great games they made just died.