Would interstellar travel remain at the theoretical level?

Would interstellar travel remain at the theoretical level?

Of course, we can make an interstellar probe, what can travel to stars, and if we would have time to wait let's say about 30 000 years, that kind of one way journey to Alpha Centauri would be done. The thing is that even the best engines like antimatter- and WARP-drive may not have enough punch to make the rocket fly even to the nearest star in the human lifetime. When we are thinking about the WARP, we don't know what kind of thrust this kind of engine can give for spacecraft.

And in the most common visions, the spacecraft would be accelerated near the speed of light by using another type of engines like antimatter, and then the final push would be given by WARP or photon rocket. But when we are thinking about the possibility to send the spacecraft to other planets or other solar systems, that would need extreme sacrifices from the crew. And the planets Mars and Venus are the only planet, what is near enough, that the crew can visit those places, and then the craft would return to Earth.

There is also a possibility to send a crew to another planet or solar system by using the artificial black hole, what is created inside the ball-shaped spacecraft by bombing it with radio waves. But then we must realize, that there is a possibility, that we would miscalculate the oscillation of the other black hole, or at the end of the wormhole, the craft would not able to create the wormhole, and the return would be impossible. 

One of the most interesting ideas is to make that journey in virtual mode. In this scenario, to another solar system would send the unmanned probe, what would travel to its target even thousands of years. And when the probe would land to some hypothetical planet, and then it will use laser scanners and other sensors to make the virtual reality 3D model of the landscape.

After that, the system would send this model to the Earth, and researchers can form the conditions on that planet by using virtual reality tools. This means to travel without craft. This kind of models of the long term space flight doesn't need human sacrifices, and those persons, who would work with this kind of projects can sleep at their homes, and wait for the signal. 

Of course, that signal can come centuries or millenniums later, and the problem is that, what if we would forget that probe? The journey to the stars like Sirius would take hundreds of years, and during that, the probe would operate with minimum power, because of even the largest nuclear reactors has limited fuel resources.

And if we would send that kind of probe in real mission, we must cheese the star, where the researchers could be sure, that there would be planets where to land. The flight time of the probe would very long,  and it would act like a normal space probe, but the control of the system is under the highly sophisticated artificial intelligence.

And when those probes would travel that 8,58 light-years journey in 214 years, if the probe uses engines, what makes it fly 0,04 percent of the speed of light. So this kind of trip would be possible, and when probe arrives at Sirius system, it would search the planet. After that, the probe would land to that planet and start to send data to Earth.