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.
It's definitely a significantly different beast compared to the Predator series. I think the only real way to make it work is completely reboot the timeline, a hard reboot, and just tell a new story akin to the 1st Terminator. I think the main reasons the movies after 2 have failed is because they all tried to stay in the same general universe with Arny and whatnot.