it might be a while though but i dont think its impossible..... were still experimenting with oculus, and not everyone takes it serious as a possible plataform... with still groundbreaking experience but still rudimentary/shitty controls. When or if we actually get some good games and technologies evolve enough they work through making it able to work in servers with multiple people well have it, not as advanced as in SAO but its something. It all comes down to if its taken seryously

First of all, VR is still in further development. To think that SAO could exist in real life has never crossed my mind. But we don't know what the future holds. So in my opinion, yes. Maybe in a couple of years it may be a reality

Well there are some problems with making SAO reallity:

1) The best thing we've achieved is creating something that gives us the sensetion of having control of a VR with your own body and we've done this either with motion sensors via camera or directly attaching them to an exoskeleton attachments.
2) Here comes the part which will make it difficult for us to make SAO reallity. To make something like SAO we have to completely understand certain function of the brain like perception but in general and how can we create another perception at will and how can we connect the perceptions of diffrent people with the power of the internet? If we can't solve those questions first then we won't have something close to SAO in the near future. All we can do is wait or help and research into those things.

It may take several years, but I believe that it will be possible for us to have a game with similar experiences to Sword Art Online... but the question is "what technological leaps will be required for us to reach that point." Right now we have motion sensing technology, and we, as an industry, are currently looking into the visual aspect (via oculus rift)... and are working on an improvement to the motion which will allow movement simulations (virtuix omni). All we have to do is perfect this, and improve servers to the point where it will be able to handle the new animations that will be required for this type of game along with the potential traffic that the game will have. In fact, there's already development of controllers which are controlled via brainwaves... but this is another piece of technology that needs perfected as well.

I think that something like that might happen but not as you expect it not as e neural link more like an illusion with the oculus moving sensors giro scopes and stuff like that and so round sounds lol