Is it possible that one day everything in the universe will be consumed by one gigantic black hole due to black holes

Question: Is it possible that one day everything in the universe will be consumed by one gigantic black hole due to black holes ability to merge?
- Keywords:
  black hole,
  end of the world,
  future,
  universe
Asked by 'Murrican Warrior to David on 17 Nov 2014.
- David Wilson answered on 17 Nov 2014:
  
  No, the galaxies are too far apart (and getting further apart), for this to happen. However it’s thought that this might happen for every individual galaxy, so the universe could end up as just thousands of black holes, million of light years away from each other.

Question: Is it possible that one day everything in the universe will be consumed by one gigantic black hole due to black holes ability to merge?