Even with the others I don't see it tbh. I feel like bills and whis would stand a much better chance. Even buu. But the z fighters could power up all they want, with no Intel on what's going on they ain't gonna make it. And if three people are teleported to the past/future what's to say they know how to get back? It's the same as just goku only more dead. They might last awhile longer but that's still a big L in my book.