Karkat, Terezi, John, Dave, Rose and Jade will not be permanently removed from story (Being killed off but returning as a ghost/sprite/whatever doesn't count as being permanently removed; being killed off and spending eternity in a dream-bubble and having no further contribution to the story does): 80%

Considering that all but one of the character's named above are now about as close to being literally immortal as it's possible to get in the setting, I'm upping this to at least 85%.

Also, predicting that Terezi will get Godtiered as well (p=50%).