What if gravity becomes really repulsive in the future?
  The current acceleration of the Universe is one of the most puzzling issues
in theoretical physics nowadays. We are far from giving an answer on this
letter to its true nature. Yet, with the observations we have at hand, we
analyse the different patterns that the gravitational potential can show in the
future. Surprisingly, gravity not only can get weaker in the near future, it
can even become repulsive; or equivalently, the gravitational potential may
become negative. We show this remark by using one of the simplest
phenomenological model we can imagine for dark energy. We have as well reviewed
the statefinder approach of these models. For completeness, we have also showed
the behaviour of the density contrast of dark matter and dark energy for these
simple (yet illustrative models). Our results are displayed at present and how
they evolve in the future.
