If there's any series/franchise ripe for a true comeback: It's The Terminator.
It's pretty widely agreed that every movie after 2, which is over 30 years old now, kinda sucks to varying degrees (Tho 3 might have it's moments).
They've tried to soft-reboot it not just once, but twice, both being pretty abysmal failures.
In the right hands, I think it's very possible for there to be another critically-acclaimed and successful Terminator movie, I don't think it's impossible.
idk I think Terminator is too associated with Schwarzenegger to have its own Prey, while the Predator can hunt new actors in each movie and be played by anyone wearing the suit. even in that kinda shitty Christian Bale and the guy from Avatar Terminator prequel, Salvation? they had a cgi Schwarzenegger cameo. after that I think they brought him back for the next 2 movies because they realized that's who people want to see