Originally Posted by
star_world
There has been no information released on how the FF program will be structured going forrward, so therefore no reason to presume that they will be converted to UA miles or anything like that.
True. Still, it's unthinkable that United (after the merger) will
perpetually maintain
two FF programs. Therefore, the OP's OP miles
will become United FF miles—whatever United calls its program: OnePass or Mileage Plus.
Why s/he is worried about that is anyone's guess.
RNE, channeling Madame Blavatsky to say, "My hunch is it will be called 'OnePass Plus.'"