1. Even if we achieve time travel (and it's debatable whether the science truly allows such things --- even relativity only allows from what i know (though i'm not entirely knowledgeable on this topic anyway) time travel into the future... and even so, we still need empirical proof that Einstein was right about time travel, for now, from what i understand, it's still in the theoretical category only), and see whether or not Jesus was divine or not, it would simply mean the Bible is wrong. It doesn't mean there's no God, just not the one of the Bible.
2. Perhaps. Or perhaps God purposefully designed different universes with different features. It's still a tough sell to me that a universe can become so complex by itself.
3. It could be a philosophical zombie. Beings that act like they're conscious, but that's only an illusion. It's just due to their programming. One interesting and futuristic claim by Hans Moravec and Ray Kurzweil (here we go! transhumanism! lol) is that if we design artificial neurons with the same functions as a regular neuron (each individual neuron, that is --- good luck with this, you'd need molecular nanotech probably), and replace a neuron with its artificial equivalent (by scanning the original in detail and making the artificial copy those characteristics), and you don't feel a loss in consciousness, then it is proof of the fact that AI can feel. This would entail a form of functionalism (i.e., whatever physical system there is, as long as it has the same causal organization, it will be conscious) along with property dualism (it is clear then that consciousness is not limited to one physical form, for it can be digitized and transferred to another substrate, therefore, the mind is made up of two properties, physical, the hardware, and non-physical, the software, information). However, I believe that there exists a possible world (maybe not ours) where the exact behavior of a soul could be made in such a way as to, so to speak, "adopt" the artificial as its natural brain just so long as it is the brain that dominates, and not the artificial, and you'd feel normal. What I mean by this is, as long as it's "a brain with artificial parts" as opposed to "a computer with pieces of meat", you know? It's possible. The soul is ellusive and we don't understand it. Then, once you reach the point where the brain is but a mere piece of meat, you can say the soul just suddenly "disappears", so to speak, but the remaining artificial intelligence will continue to act as it is programmed. It's close to impossible to 100% prove that an artificial system truly is conscious.
4. I guess this would be proof of evolution. Though if humans enhance animals (in sci-fi, it's called a bio-uplift), it's just proof of design. Theistic evolution is still an option though, even if not man-made.
5. If you mean cryonics, it's debatable. Some consider it to be no different than today's resusciations, though on a longer scale (
http://www.apologetics.com/index.php?op ... &Itemid=69). Still, what comes back could be the biological equivalent of a philosophical zombie if the soul leaves (the neural patterns are still maintained, so it would act as you), however, it would act deterministically without free will i PERSONALLY would assume, i take the non-physical soul to probably be the best answer to free will (the driver of the car --- without the soul, the philosophical zombie will act like it's on autopilot... we might not even notice a difference). This is dependent upon dualism, though. Substance dualism specifically i think. If you mean bring someone back hours later without some sort of artificial system keeping blood flowing, etc., like they did in Star Trek when they put in nanobots in a dead person's body to restart it, that's probably an even lesser of a deal than long-term cryonics. If you mean totally rebuild someone after they were eaten alive, all their body parts, by say, lions or whatever, then it would be an interesting feat, but still can't disprove God. I'm not even sure this would be a major threat to the Bible. I haven't read anywhere where it says that humans can't specifically bring people back to life IN THIS WORLD, but still as a mortal (not as Jesus' resurrection of the dead in Revelation, where I assume we'll be special or something, or we just get immortality from the Tree of Life). But this isn't true immortality. You still need to store the person's information patterns (assuming physicalism) if you wish to bring them back to life (see Mind Uploading on wikipedia for more information on how something like this could work). I am not saying all of these things are possible. But this post did go off into far out predictions so might as well bring up proposed technologies. ALSO, even if you come back to life and DON'T remember anything from the afterlife, we have several options. Could be that the soul's memories are outside of the physical world. Look at amnesia. I'm sure the soul still has its own memories, they just can't manifest in this world. Similarly, God could just know that we are doing these things, and as a way of maintaining some secrecy, He removes the memories the soul has of the afterlife when it returns to the body.
In short, there is absolutely nothing that can disprove God 100%. Nothing that can probably prove it 100% either, though i'd lean more on proof that disproof, but that's just me.
-Eddie G.