 ::::I think that perhaps more direct, or additional if not more prestigious references might help here.  Consider dilatonic quantum gravity, ref 21, i.e. the paper by Mann and Ohta provides a solution with a non-Newtonian limit apart from a solution with a Newtonian limit.  This is Jackiw–Teitelboim gravity theory, a scalar-tensor theory in $1+1$ dimensions.  This paper is fundamental i.e. exact solutions of a self-interacting quantum gravitational system.  It combines gravity theory, EM theory and quantum mechanics albeit in lower dimensions.  This is not cosmology but could have applications in cosmology.  It is part a first rate body of work by R.B. Mann and co-workers with publications in Classical and Quantum Gravity and Phys. Rev. D.  However, I have the feeling that you want something more along the lines of Scientific American or Nature.  Nonetheless, a 'en passant' statement that anti-gravity i.e. solutions with a Non-Newtonian limit are considered in scalar-tensor (quantum) gravity theories could be made. But you are probably right, that more along these lines needs to be worked out before any statement could be made in wikipedia.  