I disagree. Many have already separated the martial side, and it’s an accelerating trend by its nature, since more and more people passing it along don’t possess that side of the art.And yet it hasn't for a very, very, very long time.
If it was going to vanish it would already have done so. That's what makes it an art. Arts can't die. Can't even think of an art that ever really did.
Disco never really died. Hell, Keanu Reeves was just in a major Tai Chi Chuan movie not too long ago, and it wasn't even any of the Matrices.
It would be very un-Dao to separate the martial side, if you think about it. Can't ever happen.