Impossible to know... As of May(at least) Mago has been able to speak short sentences, and recognizes friends and family. From the look of things I'm sure he'll get much better with time, maybe even well enough to function on his own. We can only hope for the best, but he does appear to be making progress....
That is why your corner should be someone that really cares for their fighters, you see it all the time, how they just let them continue even though they are out on their feet